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5.Let’sasongnow.A.singingB.singC.aresingsing5.Let’s()asongnow.A.singingB.singC.aresingsing

题目详情
5.Let’s a song now. A.singing B.sing C.are singsing
5.Let’s( )a song now. A.singing B.sing C.are singsing
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答案和解析
B.sing
let 是使动动词,后面加动词原形