单选题Was it in 2002 _____

单选题 Was it in 2002 __________ he was still at middle school __________ the boy became expert at computer?A.that; whereB.when; whereC.that; whenD.when; that

D解析考察强调句型和定语从句。本题强调的是时间状语in 2002 when he was still at middle school.其中定语从句When he was still at middle school修饰先行词2002;第二空that与it was构成强调句型的基本结构。故D正确。

好好学习下