Dưới đây là đáp án cho các bài tập tiếng Anh lớp 9 dựa trên yêu cầu của bạn:

1. Although he tried hard, he couldn’t set up a new world record.
2. It hasn’t rained for two months.
3. It’s 3 years since I last saw Nam.
4. I haven’t seen him for 3 years.
5. “Don’t make so much noise, Peter,” said Carol.
6. Keeping the environment clean is very important.
7. “You should turn off the lights before going out,” Mrs. Hoa said.
8. Mrs. Hoa suggested planting trees around the house to get more fresh air.
9. How about putting more trees around your house?
10. He didn’t hurry, so he missed the train.
11. Unless you water these plants every day, they will die.
12. They have sold that old house for a week.
13. Tim was very intelligent. He could do this difficult exercise.
14. Tim was intelligent enough.
15. “What games do you often play?” he asked me.

Hy vọng bạn thấy thông tin này hữu ích!