___he daydreamed, Peter saw figures in the sky.
| A．Until | B．Since | C．While | D．During |
Peter______come with us tonight, but he isn’t very sure yet.
| A．must | B．may | C．can | D．will |
The fire spread through the hotel very quickly but everyone_____get out.
| A．had to | B．would | C．could | D．was able to |
Johnny, you_____play with the knife, you_____hurt yourself.
won’t/can’t B.mustn’t/may C.shouldn’t/must D.can’t/shouldn’t
—Could I call you by your first name? —Yes, you______
| A．will | B．could | C．may | D．might |
A computer_____think for itself, it must be told what to do.
| A．can’t | B．couldn’t | C．may not | D．might not |