The door___,so it requires___at once.

问题描述:

The door___,so it requires___at once.
A.can't open;to be repaired
B.can't be opened;being repairing
C.won't open; repairing
D.won't be opened; repairing

此题选A.门肯定是不能(被)打开.首先排除C、D.因为C、D的情态动词表达的是“不会”,这个就有主观意义在了.第二个空:就要根据require的用法了.require和need做实意动词时是一样的用法.require/need doing 本身就有...