Điền câu hỏi đuôi

EX1: Câu hỏi đuôi 
1. Let's not be late,            ?
2 . Your hobby is collecting dolls,               ?
3. Mary told you about that,                 ?
EX2:  Câu hỏi Y/N
1. she can speak English fluently.
2. Peter bought a new car last week.
3. I always go to the club on time.