题目内容
-Sir,may I borrow some new books?
-Sorry,you can't________you haven't turn back those you borrowed one month ago.
-Sorry,you can't________you haven't turn back those you borrowed one month ago.
| A.unless | B.before | C.because | D.until |
B
C 考查连词。根据答语“对不起,你不能,因为一个月之前借的那些书你还没有还。”可知答案。
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