—Tom can’t find his gloves. Are these blue gloves his?

      —No, they ______ be his. His gloves are black.

A. must            B. may            C. can’t               D. mustn't

【小题1】 Tom can't join the summer camp because he _______.

— There is somebody at the door. ________ it be Tom?

— No, it _______ be him. It’s just six o’clock. It’s too early.

【小题1】Tom can't join the summer camp because he _______.

A．doesn't speak English well	B．doesn't like the university
C．is 20 years old	D．isn't a Canadian

A．On a poster.

B．In a textbook.

C．In a letter.

D．In a guide book.

Tom _________ play football but he can’t play basketball.

A. can’t              B. can                  C. must