1. Identify the one that has a mistake by circling the corresponding letter a, b, c, d.

71. If we will reduce->reduce the speed of population growth, there will be less pressure on the earth.

72. Unless->IF we leave a bowl of water under the sun, it will evaporate.

73. If we continue to use fuels at the current rate, we would->will soon have to face a fuel crisis.

A b c d

89. If tomorrow the weather will be->is bad, the match will be postponed.

a. b. c. d.

90. If you will see->see Mike today, please ask him to phone me.

Sửa lỗi sai:

1. If we will reduce (A) the speed of population growth (B), there will be less (C)pressure on (D) the earth.

(A) ➜ reduce

2. Unless (A) we leave a bowl of (B) water under (C) the sun, it will (D) evaporate.

(D) ➜ won't

3. If (A) we continue to use (B) fuel at the current rate, we would (C) soon have to face (D) a fuel crisis.

(C) ➜ will

1. If we continue to use fuels at the current rate, we would soon have to face a fuel crisis => will

2. If I am 10 centimeters taller, I would play basketball => were

3. If the doctors could find in the remedy, a lot of people would be saved => out

4. If she bought that house now, she ran out of money => would run

5. What you would do if you could speak French well? =>would you do

6. If tomorrow the weather will be bad, the match will be postponed => is

7. If you will see Mike today, please ask him to phone me => \(\varnothing\)

8. If I were you, I will go to the dentist's and have the tooth checked => would

9. If you hadn't left the car unlooked, it would't have be stolen =>been

10. What would happen because I pressed that red button => if

11. If the weather is fine today, we would go to the beach => will

12. If you will study harder, you will surely pass the coming exams with good results => \(\varnothing\)

13. If the weather weren't too bad, we would to go swimming => \(\varnothing\)

14. If we will reduce the speed of population growth, there will be less pressure on the earth => \(\varnothing\)

15. Unless we leave a bowl of water under the sun, it will evaporate => if

tìm từ viết sai được viết in đậm và sửa lại:

1,if we will reduce=> REDUCE the speed of population growth , there will be less pressure on the earth

2,unless=> IF we leave a bowl of water under the sun , itwill evaporate

3,if we continue to use fuels at the current rate,wewould> WILL soon have to face a fuel crisis

4,if i am => WERE 10 centimeters taller , i would playbasketball (lưu ý từ ''centimeters'' và ''taller''ko phải một cụm mà là tách riêng)

5,if the doctors could find in=> FIND OUT the remedy , a lot ofpeople would be saved

6,if she bought that house now , she ran => WOULD RUN out of money

7,what you would do => WOULD YOU DO if you could speak French well?

8,if i had known he is not=> WASN'T at home , i wouldn't have gone all the way to his house

9,if i had known that the road were flooded=> WERE FLOOD ,i would never have taken that way

10,if i were you,i will=> WOULD go to the dentist's and have the tooth checked

Bài 1:Khoanh vào đáp án đúng

1.If his teeth still.............., he will have to go to the dentist's again

A.hurt B. hurts C.to hurt D. will hurt

2.Betty will not go to the party unless John........................too

a.. go b. went c. going d.goes

3.Miss An does not..........................to go on the trip if nobody goes with her

a.want b. wantes c.wants d.wanting

4.Mr Smith.................to work on weekends if his manager tells him to

A.have b.has c.haves d. hases

5.Unless they ..................................her to work hard,she would not

a.encourage b.encourages c.encouraging

Baì 2:Tìm lỗi sai và sửa lỗi

1.Unless we leave a bowl of water under the sun,it will evaporate

==>won't

2.If we continue to use fuels at the current rate,we would soon have to face a fuel crisis

==>will

3.If tomorrow the weather will be bad, the match will be postponed

4.If you will see Mike today,please ask him to phone me

==>see

Bài 3:Thêm từ và đăt câu hoàn chỉnh

1.The students/our school/often/collect/waste paper/their mini project

==>The students in our school often collect waste paper for their mini project.

Exercise 1: Identify the one that has a mistake by circling the corresponding letter a, b, c, d.

1. If we will reduce => reduce the speed of population growth , there will be less pressure on the earth. A B C D

2. Unless=> If we leave a bowl of water under the sun, it will evaporate. A B C D

3. If we continue to use fuels at the current rate, we would=> will soon have to face a fuel crisis.

A B C D

4. If tomorrow the weather will be=> is bad, the match will bepostponed.

A B C D

5. If you will see=> see Mike today, please ask him to phone me.

A B C D

1,had been -> were 

2,Unless -> If

3,knew -> known 

4,am -> were 

5,could find -> found 

6,would stop ->would have stopped 

7,could speak -> spoke 

8,is not -> wasn't 

9,had I known ->I had known 

10,will -> would 

11,be -> been 

12,because -> if 

13, is => were

14,will study -> study 

15,to go ->go

16,to -> for 

17,occur -> would occur 

18,would have studied ->had studied 

19,will be -> is 

20,saw ->see 

1. If Lucia had been here now, she would find out the truth about her uncle's accident.

=> had been thành were
A  B  C  D

2. Unless we leave a bowl of water under the sun, it will evaporate. 
A  B  C  D

=>  Unless thành  if
3. If I had knew the time when the match started, I would have told you. 
A  B  C  D 

=> had knew thành knew
4. If I am 10 centimeters taller, I would play basketball. 

am thành were
A  B  C  D
5. If the doctors could find in the remedy, a lot of people would be saved. 
A  B  C  D

. in thành  out
6. If I had realized that the traffic lights were red, I would stop. 
A  B  C  D 

would stop thành would have stopped
7. What you would do if you could speak French well? 
A  B  C  D

 you would thành would you
8. If I had known he is not at home, I wouldn't have gone all the way to his house. 

is thành was
A  B  C  D
9. If had I known you were in financial difficulty, I would have helped you. 
A  B  C  D

bỏ if
10. If I were you, I will go to the dentist's and have the tooth checked.
A  B  C  D

will thành would
11. If you hadn't left the car unlocked, it wouldn't have be stolen. 
A  B  C  D

be thành been
12. What would happen because I pressed that red button? 
A  B  C  D

because thành if
13. If the weather is fine today, we would go to the beach. 
A  B  C  D

14. If you will study harder, you will surely pass the coming exams with good results. 

bỏ will
A  B  C  D
15. If the weather weren't too bad, we would to go swimming. 
A  B  C  D

bỏ too
16. If he weren't too old, he would apply to the job as a war reporter. 
A  B  C  D

to thành for
17. If drivers obeyed the speed limit, fewer accidents occur.
A  B  C  D

. occur thành  would occur
18. If I would have studied Russian at school, I would have understood him easily.

. would have studied thành had studied
A  B  C  D
19. If tomorrow the weather will be bad, the match will be postponed. 
A  B  C  D

will be thành is
20. If you saw Mike today, please ask him to phone me. 
A  B  C  D

saw thành see

1. Were => had been

2. Had done => have done

3. Has => had

4. Will study => study

5. Am = >were

6. Will=> would

7. To => X

8. Unless => If

9. Apply => have applied

10. Will=> would

1.  Unless I don’t study, I will not pass the exams. --> bỏ
2. If the sun shines, we would walk to the town. --> will
3. If he will have a temperature, he will see the doctor. --> has
 4. If my friends come, I will am very happy. --> be
5. If she earn a lot of money, she will fly to New York. --> earns