_____ you can not answer this question,we have to ask someone else for help.A.Although B.While

_____ you can not answer this question,we have to ask someone else for help.A.Although B.While
C.Whether D.Since
英语人气:674 ℃时间:2019-08-19 17:36:35
优质解答
Since,表示既然,因为~
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