----- Nội dung dịch tự động từ ảnh ----- II. Complete the sentences with must or mustn't. 1. She is ill, so she 2. It is raining. You You 3. 4. This is a secret. You 5. You 6. We 7. The baby is sleeping. You 8. You 9. They 10. You see the doctor. take your umbrella. throw litter on the stairs. tell anybody. make noise in the library. hurry or we will miss the bus. shout. be friendly to everybody. walk on the grass. light fires in the forest.