The students are busy ______ trees and flowers . [ ]A. to plant B. pla

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The students are busy ______ trees and flowers . [     ]
A. to plant
B. plant
C. plants
D. planting

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举一反三

I"m sorry to keep you ______ for a long time . [     ]
A. to wait
B. waiting
C. wait
D. waited

题型：期末题难度：| 查看答案

Stop ______, please. Let"s go on with our lesson. [     ]
A. talk
B. to talk
C. talking
D. talke

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I didn"t watch TV until I finished ______ my homework . [     ]
A. to do
B. did
C. do
D. doing

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After Tom finished the kite, he went on ______ it . [     ]
A. flying
B. fly
C. flies
D. to fly

题型：期末题难度：| 查看答案

I like _______.[     ]
A. swiming
B. swim
C. swimming
D. swims

题型：同步题难度：| 查看答案

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