问题 选择题
.----I can’t find Jack. Where did you see him this morning?
----It was in his factory _______he worked.
A.whereB.which
C.thatD.on which
答案

A

考查定语从句.本题要区分强调句和定语从句.本句是强调句中包含定语从句,从句he worked 缺状语,故用where.

单项选择题
单项选择题