单项选择题

As there was a power cut in the hospital, the surgeon had to () the operation.

A. call for
B. call on
C. call off
D. call up

<上一题 目录 下一题>
热门 试题

单项选择题
Betty saved her money ______ she might buy an MP3 player.
A. so as
B. so that
C. even if
D. as if
单项选择题
() are the days when teachers were looked down upon.

A. Gone
B. Go
C. Togo
D. Going
相关试题