Everyone must______ the classroom____.A.keep,cleaned B.keeps,cleaning c.keep,clean D.keeps,clean

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Everyone must______ the classroom____.A.keep,cleaned B.keeps,cleaning c.keep,clean D.keeps,clean
Everyone must______ the classroom____.
A.keep,cleaned B.keeps,cleaning c.keep,clean D.keeps,clean

Everyone must______ the classroom____.A.keep,cleaned B.keeps,cleaning c.keep,clean D.keeps,clean
答案:C
解释:must 情态动词后面加动词原形.keep + sth + 形容词,形容词作宾语补足语.
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C

C
Everyone must__keep__ the classroom__clean__.
每个人都必须保持教室清洁。
must 后面接动词原形,所以用keep
保持清洁:keep …… clean.
后面填形容词 :clean。
这样解释,能理解吗,住学习开心进步!
O(∩_∩)O~, 请采纳

c
must情态动词后加原形,keep+形容词
每个人必须保持教室干净。