问题

It was in the lab_ was taken charge of by Mr.Harris_ they did the experiment.[ ]

A: which; that
B: that; which
C: that; whom
D: which; where

正确答案是：

同类题型

The door opened and there.

Are there any ________ on the farm—Yes, there are some。

Do you know Lucy well- Of course I do. We’ve been good friends_______ ten years ago.

I want ____ the supermarket with my sister this afternoon.

I left for the office earlier than usualthis morning _____ traffic jam.