摘要： What are the boys doing?
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— What are the boys doing in the river?
— They ________.
A. are swimming B. sing C. swim D. are singing
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—What are the boys doing?
—They are busy ________ the flew planted trees．
A．water B．to water C．watering D．watered
查看习题详情和答案>>--What are the boys doing in the river?
-- They ______.
A. are swiming B. are swimming C. swimming D. are swim
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--What are the boys doing? --They are cheering for the ________ team.
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A ．girls |
B ．girls' |
C ．girl's |