.It is the first time the students ________ to Hyde Park.
I don’t think the watch will ______ much. It is ______ $30 at most.
The young woman ______ a Frenchman. She has ______ him for five years.
Mr. Brown ______ a valuable present, but he refused ______ it.
This problem is not worth ______ again.
Antony _____ be an actor, for he doesn’t like plays or films at all.must B. may C. can’t D. mustn’t