Test 1:

I.

1. B

2. D

3. C

5. D

Test 2 :

I. Choose the word which is pronouned differently from the rest:

1. C. chemical

2. C. contaminate

3. C. tiny

4. A. emission

5. A. ocean

II.

6. outbreak

7. damage 

8. sewage

9. contaminate

10. measure

III.

11. promise - will give

12. were - would ride

13. stopped - wouldn't be

14. would suffer - listened

15. teach - will become

Test1:

I. Choose the word which is stressed differently from the rest:

1. B. gram'martical

2. D. 'classic

3. C. ar'tistic

5. D. 'poison

II, Chose the correct answer : 

6. B. due to: bởi vì

7. A. were /would ( câu điều kiện loại 2)

8. C. caused : gây ra

9. A. become

to make sb + V

10. D. didn't throw

11. B. to 

lead to sth : dẫn đến gì

12. C. SInce + clause : bởi vì

13. B . result in : dẫn đến

14. A. will/ build

Test 2 :

I. Choose the word which is pronouned differently from the rest:

1. C. chemical

2. C. contaminate

3. C. tiny

4. A. emission

5. A. ocean

II, Fill in each blank : 

6. outbreak :sự bùng phát

7. damage 

8. Sewage : chất thải

9. contaminate : ô nhiễm

10. measure : đo 

III, Put the verbs in the blanket in the correct form:

11. promise/will give

12. were / would ride

13. stopped/ wouldn't be

14. would suffer/ listened

15. teach/ will become

Cấu trúc câu điều kiện :

Loại 1: If + S + V(s/es), S + will/can/shall + V(nguyên mẫu)

Loại 2: If + S + V(quá khứ), S + would/could/might + V(nguyên mẫu)