选择B：while
他很安静（但是）他哥哥很外向.
He is quiet ____his brother is outgoing .A.as B.
He is quiet ____his brother is outgoing .A.as B.
He is quiet ____his brother is outgoing .
A.as B.while C.before D.after
He is quiet ____his brother is outgoing .
A.as B.while C.before D.after
其他人气：430 ℃时间：2020-02-01 09:31:16
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