điền should +vbare hoặc should have +vp2

1. Helen (come) the exam. She's been studying very hard

2.You missed a great party last night. You (come)

3. We don't see you enough. You (come) and see us more often

4. i'm in a dificult position. What do you think I (do) now?

5.I'm sorry that i didn't take your advice. I (do) what you said

6. we lost the game yesterday, but we (win). We were the better team

7. Tanya has a tennis match against Jane tomorrow. Jane (win)- she's much better than Tanya

8. We went the wrong way and got lost. We (turn) right, not left

9. Tom was serious when he said he wanted to be an actor when he grew up. We (not laugh) at him. We hurt his feelings

10. John was deported on account of his expired visa. He (have) it renewed.

1. _____ my car, I discovered that my stereo had been stolen.

A. In order to look into B. When I will look into C. Being looking into D. On looking into

2. It’s difficult to think of anything nice to say about my neighbor’s naughty boys, _____, they are at least honest.

A. therefore B. even though C. however D. as a result

3. We must begin testing this instrument no mater _____ difficult it is.

A. whatever B. what C. however D. how

4. Sue admitted that she could not concentrate on her work _____ due to this irritating noise.

A. in all B. the bit least C. in the least D. at the least

5. Determining the mineral content of soil samples is an exacting process; _____ experts must perform detail tests to analyze soil specimens.

A. so that B. however C. afterwards D. therefore

6. You should stop working too hard _____ you’ll get sick.

A. or else B. if C. in case D. whereas

7. _____, she managed to hide her feelings.

A. If she would feel jealous B. In case she felt jealous

C. However jealous she felt D. Despite of her being jealous

8. _____ I’d like to help you out, I’m afraid I just haven’t got any spare money at the moment.

A. Much as B. Try as C. Even D. Despite

9. Many small birds use new sites for each nesting, _____ large birds often reuse the same nest.

A. therefore B. how C. despite D. whereas

10. We’ve had a burglar alarm installed in our holiday cottage _____ we will feel happier about leaving it unoccupied for long periods.

A. for fear that B. so that C. now that D. provided that

1. _____ for the lesson, she got bad mark for the essay.

A. Although she is late

B. Since she is late

C. Because she was late

D. When she was late

2. The librarian arranges the books according to their content _____ people can find them easily.

A. so that B. because of C. despite the fact that D. even though

3. Many people gathered in front of the building _____ the President clearly. A. as if they could have seen B. where they could not see

C. in order that they could see D. on which they can see

4. She signed the contract _____ she was still confused about articles.

A. although B. because C. as if D. but she

5. The company makes a very big profit, _____ low salaries.

A. so that the workers will still have

B. because the workers don’t still have

C. but the workers still have

D. since the workers still have

6. Her company was bankrupt _____ from the economic crisis.

A. because the country suffered B. so that the country has suffered

C. although the country had suffered D. so the country is suffering

7. _____ very hard, they still do well.

A. Because the exercises will be

B. Even though the exercises are

C. In spite of the exercises are

D. When the exercises had been

8. The President declined to deliver the speech himself _____ a sore throat. A. despite B. because of C. even though D. on account of the fact that

9. Learning how to write is important _____ most professional jobs require writing skills.

A. as B. though C. because of D. in spite of

10. _____ buy a sports car, you have to pay higher insurance.

A. In order that B. In spite of C. In order to D. Though

sử dụng mệnh đề phân từ

1. Because I live within walking distance of the centre, I rarely use the car.

2. When I was cycling in to work the other day, I saw a deer.

3. As we’d never had so much peace and quiet before, we found living here a little strange at first.

4. Our bedroom, which is situated at the back of the building, has some superb views over the rooftops towards the docks.

5. The house is a little off the beaten track, so it’s not that easy to find.

6. She fell asleep while she sat in the armchair.

7. Although it is not known for its tourist attractions, our neighborhood does have one or two treasures which are waiting to be discovered.

8. The criminal was convicted and then sentenced to ten years in prison.

9. John thought he knew all about Italy because he once went there for the weekend!

10. I suddenly remembered where I’d left my keys when I was waiting for the bus.

Hoàn thành các phương trình sau và gọi tên các chất

1. HCOOC₂H₅ + NaOH

2. CH₃COOC₂H₅ + NaOH

3. CH₃CH₂COOCH₃ + NaOH

4. CH₃COOCH₂CH₃ + NaOH

5. CH₂=CH-COOCH₃ + NaOH

6. CH₃COOCH=CH₂ + NaOH

7. CH₃COOCH₂C₆H₅ + NaOH

8. C₆H₅COOCH₃ + NaOH

9. CH₃COOC₆H₅ + NaOH

10. CH₃COOCH₂-CH₂-CH₃ + NaOH

điều gì dưới đây là trở ngại lớn nhất đối với viêc sử dụng lợi ích nguồn nước sông ngòi vào mục đích sản xuất và sinh hoạt?

a, ô nhiễm nguồn nước đang gia tăng ở nhiều vùng

b, sự phân hóa lượng nước theo mùa 

c, sự phân hóa lượng nước theo vùng

d, lượng nước vật chất đặc trong các dòng chảy sông ngòi lớn

'' miền Bắc có 1 mùa đông lạnh, miền nam có 1 mùa khô sâu sắc, Tây Nguyên và đồng bằng vẹn biển miền Trung có sự đối lập giữa 2 mùa mưa khô"Đặc điểm khí hậu trên là do

A. Nước ta nằm trong vùng nội chí tuyến ở trung tâm vùng Đông Nam Á

B. Hoạt động của gió mùa làm phức tạp tính chất nóng ẩm cơ bản của nước ta

C. Nước ta nằm hoàn toàn trong vùng nội chí tuyến lại tiếp giáp Biển Đông

D. Sự luân phiên hoạt động của các khối khí trên lãnh thổ nước ta