单项选择题

In order not to be disturbed, I spent three hours ______ in my study.

A．locking
B．locked
C．to lock
D．being locked
<上一题 目录 下一题>
热门 试题

单项选择题
In Disneyland, every year, some 800, 000 plants are replaced because Disney refused to ______ signs asking his guests not to step on them.
A．take down
B．call for
C．put up
D．set up
单项选择题
It was not until I ______ your letter that I ______ all about the matter.
A．have read; knew
B．would read ;had known
C．read; had known
D．had read; knew
相关试题