单项选择题

It worried her a bit ______ her hair was turning gray.

A．while
B．that
C．if
D．for
<上一题 目录 下一题>
热门 试题

单项选择题
The electricity was cut off while the film ______ ．
A．was shown
B．was to show
C．was showing
D．was being shown
单项选择题
Only in recent years ______ begun to realize that wild dogs, kept within bounds, often do more good than harm.
A．people have
B．since people have
C．have people
D．people who have
相关试题