1I saw them _____ basketball at this time yesterday.
A. play B. played C. to play D. playing
1John _____ go there with us tonight, but he isn’t sure about it.
A. must B. can C. will D. may
1You must ______ your cigarette when you are at the gas station.
A. put down B. put on C. put off D. put out
1Her grandparents are still in good health ______ they are over eighty.
A. though B. as soon as C. until D. because
1China lies _____ the east of Asia and _____ the north of Australia.
A. to；to B. in；to C. to；in D. in；on
1—What do you think of his concert?
—Oh, no one does______.
A. good B. well C. better D. best
