Ex1:

1. old enough to

(S+ be not+ adj + enough + to V )

2.having

(How about+Ving)

3.to finish

( adj + to V)

4. closing

(Do you mind+Ving)

5.coming

(After+Ving)

6.to prepare

(in order to V)

7.cry

(make sb+V)

8.to stay

(decided to V)

Ex2:

1. wash (must+V)

2. staying( be used to+ving)

3.to finisk (It takes sb + time + to V)

4. to finish

5.play (S+let sb+ V)

6. telling/ to tell

7. be (had better+V)

8.to get( S+show sb+how to V .....)

9. visit (used to +V)

10.cooking (busy+Ving)

11.not to stay ((S + told/ asked/ advised/ reminded/ agree + O + NOT to-V)

12.  not to be(S + told/ asked/ advised/ reminded/ agree + O + NOT to-V)

Ex2. Complete the form of the verbs in parentheses:​

1. You must (wash) to wash your hands before meals.

2. I am used to (stay) staying. up late.

3. It takes him 2 hours (finish) to finish this exercise.

4. The test is too difficult for the pupils (finish) to finish in time.

5. They let him (play) play here.

6. It’s no use (tell) telling him (tell) to tell the truth.

7. You had better (be) be there on time.

8. The man shows us how (get) to get to the railway station.

9. I used to (visit) visit Nha Trang.

10. Mai is busy (cook) to cook in the kitchen.

11. They told us (not stay) not to stay here.

12. She advised me (not be) not to be lazy. 
 

1. He is not (enough old to/ old enough to/ enough old for/ old enough for) get married.

2. What about (have – to have – having – had) fruits?

3. The test is too difficult for the pupils (finishing- finish – finished- to finish) in time.

4. Do you mind (close – to close – closing – closed) the door?
8. What about (have – to have – having – had) fruits?
10. The test is too difficult for the pupils (finishing- finish – finished- to finish) in time.