—How long have you_____ from the USA?—For three years. [ ]A. come backB. re

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—How long have you_____ from the USA?
—For three years. [ ]
A. come back
B. returned
C. got back
D. been back

答案

举一反三

It was raining when I saw a lot of passengers an early bus.[ ]
A.wait for
B.waiting
C.waiting for
D.waiting to

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Who"s that boy __________ a bike over there?[ ]
A. riding
B. rides
C. to ride
D. rode

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There are many children on the playground now.[ ]
A. playing
B. play
C. to play
D. plays

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用括号内所给单词的适当形式填空。
1. Have you _____ (do) anything to keep the water clean?
2. Project Hope has built schools and _____ (library).
3. Our city _____ _____ (change) a lot since 2001.
4. The girl left the classroom without _____ (say) anything.
5. All of us want to know how _____ _____ (play) computer games.

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He saw a girl           sandwiches in the shop when he came in.[     ]
A. to buy
B. buying
C. bought
D. buy

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