“ ______ I take the magazine out of the reading room?” “ Sorry, you _____.”A. May; mustn’t B. Must; can’tC. will; didn’t have to C. Can; aren’t able to
The number of the people in the world ______ growing faster and faster. A. is b. are C. have D. were
I’m sorry to have kept you ________ for a long time. A. wait b. to wait c. waiting D. to be waiting
The film __________ for ten minutes when we got to the cinema.
Three years ____ a long time for us students.
To a doctor, the most important thing is _______. A. to save b. saving C. to saving D. saved