Question

Was it in 2002 __________ he was still at middle school __________ the boy became expert at computer?

A．that; where

B．when; where

C．that; when

D．when; that

Answer 1

D

解析试题分析:第一空when引导时间状语从句，第二空构成It was…that强调句型。
考点：强调句型
点评：强调句型在高考中每年必出，关键是要会判断，平时练习时要有这个意识。
it is /was+被强调部分+that/who+…判断方法是去掉it is /was  that/who句子不缺成分，即为强调句型。