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
The palace was heavily guarded, because inside its walls ______.
A．where lived the Queen
B．lived the Queen
C．there lived the Queen
D．that lived the Queen
单项选择题
The______ has become extremely tense. A war could break out any time between the two sides.
A．pollution
B．friendship
C．situation
D．condition
相关试题