题目内容
18.---Why were you late for school this morning,Tom?---I was about to go to school _________ it began to rain.( )
| A. | since | B. | while | C. | as | D. | when |
分析 --汤姆,今天早晨你为什么上学迟到了?
--我正要去上学,就在那时开始下雨了.
解答 答案:D
根据设空处前后的句子可以推测答语的意思是"我正要去上学,就在那时开始下雨了."when在此句做并列连词,相当于and then"就在那时",引导的是并列句;while引导时间状语从句时,谓语动词必须是可延续性动词,且用进行时.故选D.
点评 本题主要考查连词的用法,做此类题目一定要弄清句意,明白上下文之间的关系,才能更好地判断出所要用的连词.
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