Exe 1: Điền have to/ had to/ must/ mustn't /(don't to) 1. He _____ study harder to pass the final exam 2.You______ get up early yesterday morning but you didn't 3. Students in this school_______ wear uniform to school on Wednesday and Thursday 4. I _______ phone her yesterday, but I forgot.I must phone her later today 5. He_______ go fast at the intersection 6. You_______ be more careful with this elephant 7. Students have to listen to the teacher's explaining carefully 8. You_______ hurry or we'll miss the train Exe2: Điền từ thích hợp 1. He has a lot of Math books_______ the bookshelf 2. They write _____ their parents every weekend 3. We should keep all dangerous objects out _______ children's reach 9. There is a table and four chairs_____ the middle of the kitchen 10: Young children often try to put anything_____ electrical sockets CẦN CHÍNH XÁC NHẤT Ạ