Bài tập 1: Hoàn thành các câu hỏi đuôi sau.
Bài tập 1:
- He should stay in bed, shouldn't he?
- She has been studying English for two years, hasn't she ?
- There are only twenty - eight days in February, aren't there ?
- It's raining now, isn't it ?
- You and I talked with the professor, didn't we?