It started at 7:00 p.m and ---on for another half an hour.A.

问题描述：

It started at 7:00 p.m and ___on for another half an hour.A.has B.was C.had been D.will be
1个回答 分类：英语 2014-12-06

问题解答：

我来补答
It started at 7:00 p.m and (will be) on for another half an hour.
答案是 D.will be
怎么知道呢?
整个句子是
It started at 7:00 p.m and (will be) 【going】on for another half an hour.
【going】是隐含的.
 
 
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