语法题目请分析为什么不选A谢谢“Have u seen David recently?""No.I guess he (

语法题目请分析为什么不选A谢谢
“Have u seen David recently?"
"No.I guess he ( )away on vacation."
A.must has been
B.must be
C.might have been
D.may has been
哈哈霞 1年前 已收到1个回答 举报

ubup 幼苗

共回答了12个问题采纳率:100% 举报

因为情态动词后面应跟动词原形,选C

1年前

1
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