1. I enjoyed (live) in China.
2. Tom is (hard-working) than Sam.
3. It’s not difficult for me (answer) the problem.
4. He is good at (study) math.
5. Do you know some (different) between British English and American English.
6. They shop (two) a week.
7. Some boys play football two or three (time) a week.
8. Here (be) the results of the students activity survey.
9. He never took part in the (sing) competition at school.
10. (drink) coffee too much is bad for health.
