Here are the correct forms of the words for the sentences and blanks in the exercise:

### Verb Forms:
34. Do you fancy **chatting** with friends on Facebook?
35. My father doesn’t mind **washing** up in my family.
36. These days lots of children prefer staying indoors to **playing** outside.

### Sentence Completion:
1. Vietnamese children must **wear** uniform when they come to school. (B)
2. You ought to **get** some rest. (B)
3. We **saw** Dorothy last Saturday. (C)
4. A. don’t see B. doesn’t see C. didn’t see D. didn’t saw (B: doesn't see)
5. The Nile River **is** in North Africa. (A)
6. A. starts B. is starting C. started D. starting (B: is starting)
7. I’m afraid that the children are going to cut **themselves** on the broken glass. (A)
8. Let’s put the table **in** the room. (A)
9. Susan was born **on** March 3rd, 2009. (B)
10. Peter and David **are going** fishing. (C)
11. He is 16; nevertheless, he is **so** (C).
12. A tent can be **moved** pulled down and transported than a ger. (B)

### Choose the Best Option:
1. easier (A)
2. more easily (B)
3. most easily (C)
4. easily (D)

Let me know if you need further clarification or assistance!