Question 3:

1. of
2. at
3. about
4. for
5. of
6. after

Question 4:

1. D
2. A
3. D
4. C
5. D

Question 4:
1D
2A
3D
4C
5D
Question 7:
1: What do you think of Hue Ancient Capital?
2: It is more attractive than I expected.
3: The One Pillar Pagoda is more beautiful than he expected.
4: I think Hoan Kiem Lake is quite large.
5: I would like to visit The Perfume Pagoda.
6: Which place would you like to visit, Ba Vi National Park or Thong Nhat Park?
7: He wwould not like to visit Ba Dinh Square.
8: What does she think of Thong Nhat Park?
9: Would you like to visit Ho Chi Minh Mausoleum?
10: Ba Dinh Square is far from here than I and my father ecpected.

Question 5:
1: played
2: are
3: kicked
4: will pick
5: runed
6: became
7: called
8: use
Question 8:
1. Ho Chi Minh City is noisier than she expected.
2: Spring Town is more beautiful than he expected.
3: My village is quieter than they expected.
4: Her class is smaller than Loan expected.
5: Sapa is colder than my family expected.
6: American is larger than your friend Lam expected.
7: The hotel is more modern than you expected.
8: Our school is new than John expected.
9: My hometown is more boring than Phuong expected.
10: Their new city is busier than Jimmy and his sister expected.