选C.
clean 形容词,干净的
we should keep our classroom ( ) A.cle
we should keep our classroom ( ) A.cle
we should keep our classroom ( ) A.cleaning B.cleaned C.clean
we should keep our classroom ( ) A.cleaning B.cleaned C.clean
英语人气:774 ℃时间:2020-01-28 19:02:55
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