Bài 4: Điền động từ khuyết thiếu “must” hoặc ‘mustn’t” vào chỗ trống để hoàn thành các câu sau.

1. I __________do the laundry every2 days

2. You __________ stay out too late.

3. You ___________ break the class’s rule

4. My mother doesn’t want me to arrive home late, so I __________ leave now.

5. Those boys ___________ finish their homework before going out.

6. Jim ___________ finish his essay today because he’s very busy tomorrow.

7. Passengers___________ use phones on the plane.

8. You __________ be late for school tomorrow.

9. Children _______________ be accompanied by an adult when visiting this dangerous place.

10.  I ____________ be home before dinner.

11.  Students_________ talk during the exam.

12.  You ____________ cheat in a test.

13.  There _____________ be someone upstairs. I can hear the noise.

14.  We _____________ give up on what we are doing.

15.  You __________ let strangers enter the house while I’m not in.