问题详情:
The new term is coming.The students are busy ________ the classroom.
A.clean B.cleans C.to clean D.cleaning
【回答】
D
知识点:非谓语动词
题型:选择题
问题详情:
The new term is coming.The students are busy ________ the classroom.
A.clean B.cleans C.to clean D.cleaning
【回答】
D
知识点:非谓语动词
题型:选择题
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