I.
1.D
2.B
3.A
4.A
5.B
II.
1.C
2.E
3.A
4.B
5.D
III.
1. How much homework do you get ?
- I have 1 homework
2. How many English books do you have ?
- I have 4 books
3. How much does a cup of coffe cost ?
- It cost 25.000 dong
4. How many language do you speak ?
- I speak 2 language , they are English and Vietnamese 
5. How many people are there in your class ?
- There are ... ( có bao nhiêu bạn trong lớp thì ghi ) in my class 
6. How much coffee do you drink a day ?
- I drink 25ml of coffee a day

B1:
1. C
2. B
3. A
4. A
5. B
B2:
1. C
2. E
3. A
4. B
5. D
B3:
1. how much
2. how many
3. how much
4. how many
5. how many
6. how much