tui nghĩ là bà nên ghi hết đáp án trong một lần trả lời luôn á, chứ bà đừng làm như vậy, khó tìm đáp án lắm

1. “Would you mind if we ___you by your first name?”

    “Not at all. Please call me Tom.”

     A. called                    B. call                             C. calling                        D. want to call

2. She can^’t get home ___ she has no money.

     A. unless                   B. if                                C. until                           D. without

3. If I had known your new address, we ___to see you.

     A. came                     B. will come                   C. would come               D. would have come 

4. If we took the 10:30 train, ___.

     A. we would arrive too early                             B. we should arrive too early

     C. we will arrive too early                                D. we may arrive too early

5. It^’s very crowded here. I wish there ___ so many people.

     A. aren^’t                     B. weren^’t                       C. haven^’t been               D. isn^’t

6. I wouldn^’t go there at night if I ___ you.

     A. am                        B. was                            C. were                           D. had been

7. If I ___ get a pole, I^’ll go fishing.

     A. can                        B. could                         C. may                           D. might

8. If they had enough time, they ___ head south.

     A. will                       B. can                             C. must                          D. might

9. If you ___ a choice, which country would you visit?

     A. have                      B. had                            C. have had                    D. will have

10. Trees won^’t grow ___ there is enough water.

     A. if                           B. when                          C. unless                        D. as  

11. ___ she agreed, you would have done it.

     A. If                           B. Had                           C. Should                       D. Would

12. If you ___ to be chosen for the job, you^’ll have to be experienced in the field.

     A. want                     B. wanted                       C. had wanted                D. wants

13. If the doctor had arrived sooner, the boy ___.

     A. might be saved      B. have been saved         C. was saved                    D. might have been saved

14. If there ___, the rice fields could have been more productive.

     A. had been enough water             B. were enough water

C. would be enough water                  D. are enough water

15. The patient could not recover unless he ___ an operation.

     A. had undergone      B. would undergo           C. underwent                  D. was undergoing

16. If she ___ him, she would be very happy.

     A. would meet           B. will meet                    C. is meeting                  D. should meet

17. If he ___ a thorough knowledge of English, he could have applied for this post.

     A. had had                 B. had                            C. has                             D. has had

18. If I had enough money, I ___ abroad to improve my English.

     A. will go                  B. would go                    C. should go                   D. should have to go

19. If it ___ convenient, let^’s go out for a drink tonight.

     A. be                         B. is                               C. was                            D. were

20. If you ___ time, please write to me.

     A. have                      B. had                            C. have had                    D. has

21. If it ___ tomorrow, we may postpone going on a picnic.

     A. rains                     B. will rain                     C. shall rain                    D. raining

22. If you hadn^’t watched that late mivie last night, you ___ sleepy now.

     A. wouldn^’t have been   B. wouldn^’t be           C. might have not been            D. wouldn^’t have been being                     

  23. If you ___ as I told you, you ___ sorry now.

     A. did- would not be           B. had done- had not been               

C. do – would not be          D. had done – would not be

24. If only I ___ him now.                               

      A. see                             B. saw            C. have seen                                D. seen

25. If I ___, I^’ll let you know.                               

A. am staying                 B. will stay                     C. stay                       D. would stay

26. If only I ___ you wanted to invest money in business.

     A. had known            B. knew                          C. have known               D. know

27. Linda wishes she ___her car.

     A. hasn^’t sold             B. hadn^’t sold                 C. doesn^’t sell                 D. won^’t sell

28. He looked frightened as if he___a ghost.

     A. had seen                B. saw                            C. would see                   D. was seeing

29. I wish it ___ a holiday today.

A. were               B. will be                        C. is   D. had been

30. “My car broke down when I was leaving Detroit and I had to take the bus.”

     “___, we would have picked you up.”

     A. Had we known      B. If we have known       C. We had known           D. If we did know

31. If I ___ as young as you are, I ___ in a boat round the world.

     A. were- would sail    B. would be – would sail   C. were- will sail            D. would- would sail

32. If he___tickets yesterday, he ___ on the beach now.

     A. had booked- would be lying                         B. had booked- would have lied

     C. booked – would lie                                       D. books- will lie

33. If you ___ less last night, you ___ so bad today.

     A. had drunk- would not have felt                     B. drank- would not feel

     C. had drunk- would not feel                             D. would have drunk- would not feel

34. It seemed as if he ___ of it before.

     A. would never hear   B. has never heard          C. never heard                D. had never heard

35. ___ today, she would get home by Friday.

     A. Would she leave    B. Was she leaving         C. Were she to leave       D. If she leaves

36. “He^’s a very brave man.” “Yes, I wish I ___ his courage.”

     A. have                      B. had                            C. will have                    D. would have

37. ___he___ hard last year, he would have lost the first prize.

     A. Hadn^’t – studied    B. Had- studied              C. Didn^’t study               D. If – had studied

38. We^’re going to be late if ___.

A. we not leave right now                                          B. we didn^’t leave right now

C. we won^’t leave right now                                  D. we don^’t leave right now

39. “I wish this city___ so noisy.” “I know. I wish we ___ in the countryside.”

     A. isn^’t – live              B. wasn^’t – live               C. weren^’t- live               D. weren^’t – lived

40. He acted as though he___ for days.

     A. not eat                   B. hasn^’t eaten                C. hadn^’t eaten                D. didn^’t eat

41. We ___ the game if we^’d had a few more minutes.

     A. might have won     B. won                           C. had won                     D. will win

42. I ___ William with me if I had known you and he didn^’t get along with each other.

     A. hadn^’t brought       B. didn^’t bring                C. wouldn^’t have brought           D. won^’t bring                                

43. If you ___ to my advice in the first place, you wouldn^’t be in this mess right now.

     A. listen                     B. will listen                   C. had listened                D. listened

44. ___ interested in that subject, I would try to learn more about it.

A. Were I              B. Should I                     C. I was                          D. If I am            

45. I ___ you sooner had someone told me you were in the hospital.

     A. would have visited        B. visited            C. had visited                 D. visit

46. ___ then what I know today, I would have saved myself a lot of time and trouble over the years.

     A. Had I known         B. Did I know                 C. If I know                    D. If I would know

Mark the letter A,B,C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

27. I couldn't *make out* what he had talked about because I was not used to his accent.

A. stand  B. understand  C. write  D. interrupt

28. I fell into the water when I tried to *get out of* the canoe.

A. enter  B. start  C. climb  D. exit

Mark the letter A,B,C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

29. Which ones do you think would be difficult for *blind* and deaf people?

A. clear  B. sharp-sighted  C. smooth  D. dauntless

30. Do you mind if I *borrow* your dictionary?

A. run  B. take  C. go  D. give

Mark the letter A,B,C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges

31. - Nga: “ When’s your birthday, Ann?” - Ann:…………….

A. on the thirty-one of July     B. on the thirty- first of July

C. On July the thirty- one       D. in July the thirty- first

32. Tom and Frank are talking about action films.

    - Tom:“In my opinion, action films are exciting.”

    - Frank: “……………………”

A. Yes. Congratulations       B. There ‘s no doubt about it.

C. What an opinion!             D. You shouldn’t have said that.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. 

Question 46. During the storm, they did not let the children leave the school building.

A. During the storm, the children weren't allowed to leave the school building.

B. The children weren't reported to leave the school building during the storm.

C.During the storm, the children weren't expected to leave the school building.

D. The children weren't requested to leave the school building during the storm.

Question 47. "Why don't you take an intensive English course?" he said to me.

A. He suggested that I should take an intensive English course.

B. He recommended taking an intensive English course.

C. He urged me that I must take an intensive English course.

D. He prevented me from taking an intensive English course.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Question 48. She drank a glass of milk. The milk was cold.

A. The glass of milk which she drank was cold.

B. The glass of milk was cold which she drank.

C. The glass of milk of which she drank was cold.

D. The glass of milk which she drank was not cold.

Question 49. It may rain this afternoon. I hope it doesn’t because I don’t want the match to be cancelled.

A. If it rains, the match is cancelled.

B. If it rains, the match will be cancelled.

C. If it rained, the match would be cancelled.

D. Unless it rains, the match is cancelled.

Question 50. The weather was bad. However, we had a picnic.

A. Because bad weather, we had a picnic.

B. The weather was bad so we had a picnic.

C. In spite of the bad weather, we had a picnic.

D. Although the bad weather, we had a picnic.

It (be) cold when we (leave) the house that day, and a sight now fall

➜ It was cold when we left the house that day, and a slight snow was falling.

Câu này là ở thì quá khứ tiếp diễn (past continuous), có nhiều cách để dùng thì này, nhưng mà trong câu trên thì là vì khi có hành động đang xảy ra, thì có một hành động khác xen vào, "that day" là mình biết bối cảnh là trong quá khứ.

Dịch: Hôm đó, trời đã rất lạnh và có tuyết rơi khi chúng tôi đi ra khỏi nhà.

     A world without bees would look very different and change our lives enormously . Bees are the world's most important pollinators , fertilising a third of the food we eat and 80 % of flowering plants . However , bee populations are rapidly declining around the world . Things are changing , however . Lockdowns have created a friendlier world for wild bees - and conservationists hope some of these changes could be here to stay .

   One of the biggest impacts of the global COVID - 19 shutdown has been the significant reduction in air pollution . Less fumes from cars on the road makes it easier for bees to forage, as air pollution substantially reduces the strength and longevity of floral scents, according to a 2016 study. "In a world with less air pollution, bees can make shorter and more profitable trips", says Mark Brown , professor of evolutionary ecology at the University of London.

     Fewer cars on the roads means other benefits for bees too. The number of bee deaths is likely to fall as car journeys decrease during lockdown, Brown notes. A 2015 study by Canadian researchers estimated that 24 billion bees and wasps are killed by vehicles in North America every year. Bee specialists also hope that people's awareness of and engagement with bees will be increased . Since travel restrictions have hampered conservationists' efforts to gather data on how they are doing , ecologists and conservation groups have called on the wider public to help them gather scientific data about bees during this time. In the UK , for example , anyone can participate in the scheme by completing what is known as a Flower - Insect Timed Count ( FIT Count ) . This involves monitoring a small patch of flowers garden for 10 minutes , counting the number of insects you see and filling in an online form .

   But , like with all the other environmental changes we're seeing now , any long - term benefits for bees would depend on these changes being carried forward , so we can't say for sure that things will continue to improve for bees after lockdowns are liftecd . That being said , we can definitely be optimistic .

Question 39 : What is the best title for this passage ?

A. Why Do Vehicles Kill So Many Bees On Roads ?

B. A World With No Bees : What's The Difference ?

C. The Future Of Bees After Worldwide Lockdowns

D. How Bees Benefited From The Global Lockdown

Question 40 : Less car fumes makes it easier for bees to forage since forage(v) tìm thức ăn

A. bees can make quicker trips   C. flowers ' longevity increase

B. floral scents can last longer     D. bees will be much stronger

Question 41 : The word " profitable " in paragraph 1 is closest in meaning to profitable(adj) có hiệu quả

A. energetic   B. productive   C. helpful  D. rewarding 

Question 42 : Which of the following is NOT TRUE , according to the passage ?

A. The less cars there are , the less the number of bee deaths becomes .

B. Normal citizens can now assist ecologists in gathering data about bees .

C. In the FTI Count , you count the number of bees around your garden.

D. We cannot be certain about the future of bees after lockdowns are over .

Question 43 : The word " they " in paragraph 3 refers to

A. specialists           B. bees      C. conservationists        D. ecologists

Gọi x là số khẩu trang phải may trong 1 ngày theo kế hoạch (cái; \(0< x< 120\))

    \(\dfrac{120}{x}\) là số ngày tổ công nhân phải hoàn thành việc theo kế hoạch (ngày)

  \(\dfrac{120}{x+5}\) là số ngày tổ công nhân phải hoàn thành việc theo thực tế (ngày)

Theo đề ta có: \(\dfrac{120}{x}-\dfrac{120}{x+5}=2\)

               \(⇔120(x-5)-120x=2x(x+5)\)

               \(⇔2x^2+10x-600=0\)

\(△=10^2-4.2(-600)=4900\)

\(x_1=\dfrac{-10+\sqrt{4900}}{2.2}=15 \)   \((nhận)\)

\(x_2=\dfrac{-10-\sqrt{4900}}{2.2}=-20\) \((loại)\)

Vậy theo kế hoạch, mỗi ngày tổ công nhân đó phải may được 15 khẩu trang.