Didn’t the robot have a rest—_______. Because it never gets tired.

The meeting room was empty because the meeting was already________.

Simon is crazy about DIY. He’s trying to __a household water purifier (家用净水器)in the kitchen.

_________ big difference Tu Youyou has made to modern medicine in the world！She says she will________ her study.

Were it not for the fact that his father is on the board of directors, he ______ the job.