— Must I take the medicine every day? — No, you ____.A. must not B. may not C. don’t have to
last year , my sister tried to lose weight (减肥), but ______ putting weight back on.
Their friendship broke ______ because they had a flight.
I really enjoyed your lecture , ______ there were some parts I didn’t quite understand.
We all _____ the athlete of our country.
The dictionary mustn’t ________ from the library.