单句语法填空
1．(2018·哈尔滨六校联考)Such good use___________ he make of his spare time that his English has improved a lot.
答案：does
2．(2018·广东三校联考)It was not until dark___________ he found what he thought was the correct way to solve the problem.
答案：that
3．(2018·湖南四校期中)When we arrived, we were surprised to find that the air as well as large quantities of water ___________ (be) polluted.
答案：was
4．(2018·温州十校联考)The police were seeking more information to find out who it was ___________ killed the rich merchant.
答案：that
5．(2018·东北师大附中期中)Some of you may have finished Unit One. If ___________ ， you can go on to Unit Two.
