4. Complete the sentences with MUST/HAVE TO and the expressions below. n feed, lose weight. go to the airport. cut down on salt, study hard. wear a white coat, call 911 -- 1. My trousers are very tight. I if I want to wear them again. n. must lose weight 2. Tom is having an English test next week. He if he wants a good result. 3. My parents told me that in case of emergency I 4. The doctor told my grandma that she 5. His father is a doctor so he ____ when he's at work. 6. Laura has a baby daughter and she __ her every three hours. 7. When you travel by plane you two hours before the flight.​