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3/

1. Will give 

2. Would type 

3. Would have visited 

4. Attended 

5. Knew 

6. Had arrived 

7. Wouldn't make 

8. Were 

9. Find

10. Will be 

11. Would have had / hadn't spent 

12. Gave / would you do

13. Press / will save 

14. Will be/teaches

15. Buys/ won't lose 

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2. If you don't stop talking, you won't understand the lesson. 

3. If I knew her number, I would ring her up. 

4. If I knew the answer, I could tell you. 

5. If we had had a map, we wouldn't have got lost. 

6. If Susan hadn't eaten four cream cakes, she wouldn't have feel sick. 

7. If there hadn't been thus treatment, the patient would have died. 

8. If he hadn't been late every day, he wouldn't have lost his job. 

9. If Peter didn't eat so many chips, he wouldn't be fat. 

10. If Robert hadn't started smoking, he wouldn't have got a bad cold. 

Câu đều kiện loại 1 : If S + V-s/es ( hiện tại đơn ) , S + will/ can/ shall V : dùng để diễn tả những sự việc/ điều kiện có khả năng xảy ra ở hiện tại hoặc tương lai.

Câu điều kiện loại 2 : If S + were / V - ed ( V quá khứ ), S + would/ could/ might V ( không có thật ở hện tại nên tobe luôn luôn là were mà không phải was ) : câu điều kiện không có thực ở hiện tại, dùng để nói về một sự việc/ điều kiện KHÔNG THỂ xảy ra ở hiện tại hoặc tương lai.

Câu điều kiện loại 3 : If S + had PP , S + would/ could/ might have PP + O ( không có thật ở quá khứ ) : câu điều kiện không có thực ở quá khứ, dùng để nói về một sự việc/ điều kiện ĐÃ KHÔNG THỂ xảy ra trong quá khứ.

7. had used - wouldn't have cut

8. had celebrated - would have brought

9. would have taken - had run

10. hadn't forgotten - would have given

Ex 3 : Chia dạng đúng của động từ trong ngoặc :

1. will give

2. would type

3. would have visited

4. attended

5. knew

6. arrived

7. wouldn't make

8. were

9. find

10. would be

11. would have - hadn't spent (ĐK hỗn hợp)

12. gives - will you do

13. press - will save

14. would be - taught

15. had bought - wouldn't have lost

Bài 4 : Chuyển sang câu đều kiện

2. Stop talking or you won’t understand the lesson.

⇒ If you keep talking, you won't understand the lesson.

3. I don’t know her number, so I don’t ring her up.

⇒ If I know her number, I will ring her up.

4. I don’t know the answer, so I can’t tell you.

⇒ If I know the answer, I will tell you.

5. We got lost because we didn’t have a map.

⇒ If we had had a map, we wouldn't have got lost.

6. Susan felt sick because she ate four cream cakes.

⇒ If Susan hadn't eaten  four cream cakes, she wouldn't have felt sick.

7. Without this treatment, the patient would have died.

⇒ If we hadn't had this treatment, the patient would have died.

8. He lost his job because he was late every day.

⇒ If he hadn't been late every day, he wouldn't have lost his job.

9. Peter is fat because he eats so many chips.

⇒ If Peter ate less chips, he wouldn't be fat.

10. Robert got a bad cough because he started smoking cigarettes.

⇒ If Robert hadn't started smoking cigarettes, he wouldn't have got a bad cough.