选B
这句话简化一下就是Was it in 2002?
后面是一个时间状语从句,用when引导,表示"在那时"
(when )he was still at middle school
后面一句是从句的地点状语从句,用where引导,表示"在那里"
(where) the boy became expert at compute
选B
这句话简化一下就是Was it in 2002?
后面是一个时间状语从句,用when引导,表示"在那时"
(when )he was still at middle school
后面一句是从句的地点状语从句,用where引导,表示"在那里"
(where) the boy became expert at compute