单项选择题

Whether or not their business will succeed ______ their most concern.

A．have become
B．are
C．has become
D．to become
<上一题 目录 下一题>
热门 试题

单项选择题
The importance of fitness should not be ______ because it is not developed in a day.
A．withdrawn
B．overlooked
C．relaxed
D．stressed
单项选择题
A large number of cars ______ parked in front of my house.
A．are
B．is
C．has
D．was
相关试题