单项选择题

Scientists wilt have to ______ new methods of increasing the world's food supply in order to feed more hungry people.

A．catch up with
B．come up with
C．keep up with
D．put up with
<上一题 目录 下一题>
热门 试题

单项选择题
The board has ______ some rules that every member of the club must follow.
A．taken down
B．set down
C．let down
D．laid down
单项选择题
What a bad temper the child has! I wonder which of his parents he ______.
A．turns to
B．takes after
C．stands for
D．looks like
相关试题