Little Johnny felt the bag, wondering what it ________ .
| A．collected | B．contained |
| C．consists | D．Saved |
____caused the accident is still a complete mystery.
| A．What | B．That | C．How | D．Where |
Mary __ __ be in Paris, for I saw her in the town only a few minutes ago.
| A．mustn’t | B．can’t | C．shouldn’t | D．may not |
Peter __ _ come with us tonight, but he isn’t very sure yet.
| A．must | B．may | C．can | D．will |
----Are you coming to Jeff’s party﹖
---- I’m not sure. I __ __ go to the concert instead.
| A．must | B．would | C．should | D．might |
It _ __ last night，for the ground was wet this morning.
| A．must have rained | B．may have rained |
| C．must rain | D．might rain |