769.The old factory has been ____ to make way for a supermarket

A.cut down

B.broken down

C.pulled down

D.calmed down

770.How many pages have you _____ so far? I'd like to read the book if you have finished it.

A.looked

B.seen

C.turned

D.covered

769.答案是C；

cut down砍倒，削减；break down出故障，身体跨；pull down拆毁，下跌，降低；calm down平静下来。

770.答案是D；

此处cover=read。此外，cover还可表示覆盖，包栝，采访，行程等。