问题补充:
Was it in 1997he was still at middle school this boy became an expert at computer?
A. that; where
B. when; where
C. in which; in which
D. when; that
答案:
A. that; where
B. when; where
C. in which; in which
(答案→)D. when; that
解析:句意:那是在1997年他在中学的时候,这个男孩成了电脑专家。这里是强调句型,其结构是It was+被强调部分+ that+其他,判断强调句型的方法是把It was that去掉整个句子不缺成分,是成立的。这里被强调部分是in 1997;第一空是when引导的定语从句,when he was still at middle school,它在从句中作状语,修饰前面时间;第二空是强调句型中的that,故选D。