—Be quiet, Mr. Smith is coming.—Don’t worry. It ___ be him. Mr. Smith is much taller.A. mustn’t B. must C. can’t
When I was at the college , I _______ up early to do some body building exercise .
--- Did you see a girl in yellow pass by just now? --- No, sir. I ________ a magazine.
--I’m worried about tomorrow’s math exam. -- ______ . I’m sure you will make it.
Though Lin Tao’s parents work in another city, he can ______ himself.
--- You can use MSN to talk with Vivien on the Internet. --- I know. But can you tell me ________?