He often does his homework ________ home ________ Sunday morning.A.at,in B.in,on C.at,on D.on,on

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He often does his homework ________ home ________ Sunday morning.
A.at,in B.in,on C.at,on D.on,on

答案C 一般来说,英语中用来表达“在上午/下午”时,前面用介词in,但如果是指在具体某一天的上午或下午时,前面用介词on; at home“在家”为固定的搭配. 查看原帖>>