1 / if i had known  you had to get up early, i would have waken you up

     (if 3 nhé bạn vì đặt điều kiện ở quá khứ kết quả vẫn ở quá khứ)

2/ if he had not died so young. he could have been a famous musican

      (if 3 luôn nha lí do như trên )

3/ if you did not drive so fast. you would not have a accident

       (if 2 vì đặt điều kiện không thật ở hiện tại)

1, that old man hasn't been seen for a month

2, ..........were taken to the park by tina last sunday morning.

3, ........is going to be by his father in the city center.

4, .........hasn't been finished yet by him.

5 , ......... a bike repaired by the man yesterday.

6, ..........to be a famous doctor.

7, .........to have gone away

8, .......have known you had to get up early, i would have waked you up. ( if 3)

9, .........hadn't died young, he could have been a famous musician.( if 3)

10, ...... you didn't drive fast, you wouldn't have an accident ( if 2)