in sentence 2 there are 2 mistakes: incorrect word order and sequence of tense rule not followed.

Incorrect: First, he explained what are transistors.

Correct:  First, he explained what transistors were.

In sentence 3 there are 2 mistakes: incorrect punctuation and sequence of tense rule not followed

Incorrect: He said, that they are very small electronic devices used in telephone, automobiles, radios, and so on.

Correct:  He said that they were very small electronic devices used in telephone, automobiles, radios, and so on.

In sentence 4 there is one mistake: sequence of tense rule not followed.

Incorrect: He further explained that transistors control the flow of electric current in electronic equipment.

Correct:  He further explained that transistors controlled the flow of electric current in electronic equipment.

In sentence 5 there is one mistake: sequence of tense rule not followed.

Incorrect: He wanted to know which popular technological invention cannot operate without transistors.

Correct:  He wanted to know which popular technological invention could not operate without transistors.

In sentence 6 there are 3 mistakes: incorrect punctuation, sequence of tense rule not followed, and omitted subordinator that.

Incorrect: Most students agreed, it is the personal computer.

Correct:  Most students agreed that it was the personal computer.

In sentence 7 there are 3 mistakes: 2 times sequence of tense rule not followed and incorrect word order.

Incorrect: Professor Sanchez then asked if the students know how do transistors function in computers.

Correct:  Professor Sanchez then asked if the students knew how transistors functioned in computers.

In sentence 8 there is one mistake: sequence of tense rule not followed.

Incorrect: He said that the transistors were etched into tiny silicon microchips and that these transistors increase computers' speed and data storage capacity.

Correct:  He said that the transistors  were etched into tiny silicon microchips and that these transistors increased computers' speed and data storage capacity.

In sentence 9 there are 2 mistakes: incorrect word order and incorrect punctuation.

Incorrect: Then he asked the class when had transistors been invented?

Correct:  Then he asked the class when transistors had been invented.

In sentence 11 there is one mistake: sequence of tense rule not followed.

Incorrect: The professor said that he is correct.

Correct:  The professor said that he was correct.

In sentence 12 there are 2 mistakes: incorrect word order and incorrect punctuation.

Incorrect: Professor Sanchez then asked what was the importance of this invention?

Correct:  Professor Sanchez then asked what the importance of this invention was.

In sentence 13 there is one mistake: sequence of tense rule not followed.

Incorrect: Many students answered that it is the beginning of the information age.

Correct:  Many students answered that it was the beginning of the information age.

In sentence 15 there is one mistake: subjunctive verb not used.

Incorrect: He requested that each student chooses a topic by next Monday.

Correct:  He requested that each student choose a topic by next Monday.

In sentence 16 there is one mistake: subjunctive verb not used.

Incorrect: He suggested that the papers are typed.

Correct:  He suggested that the papers be typed.

Sửa lỗi sai:

Question 26. He said that his mother (would) be very (upset) when she (had learned) that he had (lost) his job. => learnt
Question 27. What are you trying (to tell) me by (saying) that you are (better) than (mine)? => I
Question 28. (Her book), her first mature (experience) in writing, (settles) the question of (her ability) to write.

Question 29. The team agreed (yesterday) to (resign) him to the one-year ($6.5-million salary) an (arbitrator) set this week.
Question 30.

The population, which was almost (stationery) through much of the (century), was about 20,000 in (the) years immediately (before) the War of
Independence.

Chọn đáp án đúng:

Question 43. He is so flabby. He doesn’t go by bike more often.
A. If only he were so flabby, he went by bike more often.
B. It’s time he goes by bike more often.
C. He wishes that he were so flabby so that he could go by bike more often.
D. If he went by bike more often, he would not be so flabby.
Question 44. He wants to go to the cinema. He doesn’t have money.
A. If he wanted to go to the cinema, he would have needed some money.
B. He goes to the cinema as if he had money.
C. If only he had had some money so that he could have gone to the cinema.
D. If only he had some money so that he could go to the cinema.
Question 45. He promised me to come to the party. He doesn’t come.
A. He doesn’t come to the party as though he didn’t promise me.
B. If he promised me to come to the party, he would come to the party.
C. It’s high time he promised to come to the party.

D. He didn’t come to the party as though he hadn’t promised me.
Question 46. She took a taxi. She wasn’t late for the conference.
A. If she had taken a taxi, she would not have been late for the conference.
B. She wishes she hadn’t been late for the conference.
C. She took a taxi as if she had been late for the conference.
D. She took a taxi, otherwise she would have been late for the conference.
Question 47. Richard scarcely reached the stage. The audience started screaming.
A. Had Richard reached the stage, the audience would have started screaming.
B. Scarcely had the audience started screaming when Richard reached the stage.
C. Scarcely had Richard reached the stage when the audience started screaming.
D. Only when the audience started screaming did Richard reach the stage.
Question 48. He didn’t score the goal. His team lost.
A. Had he scored the goal, his team would have won the match.
B. No sooner had he scored the goal than his team would have won the match.
C. Hardly had he scored the goal when his team would have won the match.
D. Not until did he scored the goal that his team lost.
Question 49. My teacher graded my paper poorly. I realized that there was a mistake.
A. Not until did my teacher grade my paper poorly that I realized that there was a mistake.
B. Not until did my teacher graded my paper poorly that I realized that there was a mistake.
C. Had my teacher graded my paper poorly, I would have realized that there was a mistake.
D. Hardly had I realized that there was a mistake when my teacher graded my paper poorly.
Question 50. It was a beautiful day. We could not just stay inside the house.
A. Such a beautiful day was it that we could not just stay inside the house.
B. So beautiful day was it that we could not just stay inside the house.
C. Had it been a beautiful day, we would have stayed inside the house.
D. Should it is a beautiful day, we will not stay inside the house.

Mỗi câu có 1 lỗi sai tìm lỗi sai đó và sửa lại:

1. That are => is Minh

2. What time dose => do you get up?

3. Those books on => at the back of the library are English

4. How => what subject dose Ba like best?

5. They have Math in => on Monday, Tuesday and Thursday.

Tìm và sửa lỗi sai:

1.It will be partially rainy in Manchester,that=> which is in the northwest of England

2.Professor Wil,he=> who gave a lecture about earthquake on TV last night,is my father's friend

3.You'll hardly recognize our house.It has=> has been redecorated since you last visit

4.The village church where=> which we are going to visit isn't far from here

5.Do you find Kevin,that=> who is a newcomer,intelligent?

1, that-which

2,he-who

3,has been

4,where-which

5, that- who

1 is => was

2 are => have been

3 are believing => believe

4 had => has

5 waking => wakes

6 drive => was driving

7 complete => have completed

8 buys => bought

9 cycled => cycling

10 won't  => doesn't

11 was knocking => knocked

12 didn't drink => hasn't drunk

13 when => since

14 had gone => went

15 Will => Shall

1.  is having -> was having
2. are -> have been
3.  are believing -> believe
4.  had been -> has been
5. waking -> wakes
6.  drives -> was driving
7. will certainly complete -> will have certainly completed
8.  buys -> bought
9. We’ll be cycled -> We’ll be cycling
10. won’t come -> don’t come
11.  was knocking -> knocked
12.  didn’t drink -> hasn’t drunk
13. when -> since
14. gone -> going
15. Did -> Will

Tự làm đi, giờ mới chịu làm

1, comes => comed

2, are => did are

3, want => want to

1. by foot

2. family's friend

3. watching

1. Now that the stress of examinations are over, we can go somewhere for our holiday. => is

2. Tom said that he had seen John the day before but John didn't see him. => hadn't seen

3. She has got fewer friends in her class now than she has last year. => had

Đáp án B

Theo đoạn 2, người con trai thứ hai đã nhìn thấy gì trong lượt của mình?

Cây ảm đạm, khô héo và cong queo.

Cây đã đâm chồi và tràn đầy sức sống.

Cây đang nở hoa và tỏa ra hương thơm ngào ngạt.

Cây có nhiều hoa quả, tràn đầy sức sống.

Căn cứ vào thông tin đoạn 2:

The first son said that the tree was ugly, bent, and twisted. The second son said no – it was covered with green buds and full of promise. (Người con trai đầu tiên nói rằng cái cây trông xấu xí, cong queo. Người con trai thứ hai nói không - nó chi chít những nụ màu xanh và đầy sức sống.)