题目内容
5.I'm sorry you've been waiting so long,but it'll still be sometime_____Tom gets back.( )A. | when | B. | before | C. | after | D. | since |
分析 很抱歉让你等了这么久.但是汤姆还要过一段时间才能回来.
解答 答案 B
A.when当…时候,不合句意;before在…之前;after在…之后,不合逻辑;since自从…以来,后跟时间点,主句常用现在完成进行时.故排除A、C、D三个选项.因为句型:It will be+一段时间+before从句,意为"要过多久才…",符合句意.故选B.
点评 本题考查引导时间状语从句的从属连词的用法.做题时,要结合句意和用法,选择合适的连词.
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