Mong các thánh giúp mk

11, If he could park near his office, he would come by car.

12, If my house weren’t guarded by two big dogs, it would be broken into every night.

13, If the flats were clearly numbered, it would not be difficult to find someone.

14, If I knew her e-mail address, I could tell you.

15, If she didn’t work in the evening, she would have some time to play with her children.

16, They will not be upset if I don’t tell them what happened.

17, If I were tall enough, I would join the basketball team.

18, If he saw the signal, he would stop his car.

19, If Peter prepared his lessons well, he would not get bad marks.

20, If Mary had enough money, she could buy a new car.

21, If you go right now, you will not be late for the train.