Here are the correct answers for the questions:

1. I often play soccer **on** Sunday morning.
- a. on

2. Lan is as beautiful **as** Hoa.
- b. as

3. Mai doesn’t like **watching** TV in her free time.
- b. watching

4. We have lived in this house **since** 1995.
- b. since

5. My father was good at swimming. He used to **go** swimming in summer.
- c. go

6. I **have had** this bike for nearly 10 years.
- a. have had

7. The **most** important vacation in a year is Christmas.
- b. most

8. The boy is not **tall enough** to play volleyball.
- b. tall enough

9. Last Sunday, Mr. Viet **took** his children to Thu Le Zoo.
- c. took

10. Our **natural** resources are limited, so we should recycle all these used things.
- c. natural

If you have any more questions or need further assistance, feel free to ask!

Here are the correct answers for the questions:

1. I often play soccer **on** Sunday morning.
- a. on

2. Lan is as beautiful **as** Hoa.
- b. as

3. Mai doesn’t like **watching** TV in her free time.
- b. watching

4. We have lived in this house **since** 1995.
- b. since

5. My father was good at swimming. He used to **go** swimming in summer.
- c. go

6. I **have had** this bike for nearly 10 years.
- a. have had

7. The **most** important vacation in a year is Christmas.
- b. most

8. The boy is not **tall enough** to play volleyball.
- b. tall enough

9. Last Sunday, Mr. Viet **took** his children to Thu Le Zoo.
- c. took

10. Our **natural** resources are limited, so we should recycle all these used things.
- c. natural