单项选择题

_____ is often the case, we have worked out the production plan.

A．Which　
B．When　
C．What　
D．As
<上一题 目录 下一题>
热门 试题

单项选择题
The idea _____ to him in his dream and he decided to carry it out.
A．happened　
B．struck　
C．appeared　
D．occurred
单项选择题
I made a call to my parents yesterday. To my disappointment, _____ of them answered it.
A．either　
B．none　
C．neither　
D．nobody
相关试题