Question

Was it in 2000_________he was still in middle school_________this boy became an expert at computer?

1. A.
   when; that
2. B.
   that; where
3. C.
   when; where
4. D.
   that; that

Answer 1

A
“是在2000年他还在上中学时这个男孩就成了电脑专家了吗？”第一空是定语从句，第二空是强调句型，答案A。