When did you meet Tom?It was last week __I attened the party A.when B.that C.which D.where

问题描述:

When did you meet Tom?It was last week __I attened the party A.when B.that C.which D.where
正确答案是A,可是我不知道为什么

选B,这是个强调句,It is \was +被强调部份+ that \ who +原句剩余部份.