Question

The world’s population is getting larger and larger, so scientists are trying to ______ new ways to solve the food shortage.

A．keep up with                           B．come up with

C．make up with                          D．catch up with

Answer

B

【解析】

试题分析：keep up with赶得上，和……保持联系；come up with提出，想出；make up with与……重修旧好；catch up with赶上，追上。句意：世界的人口数目正在变得越来越大，因此科学家们正在努力想新办法来解决食物短缺问题。结合语境可知选B。

考点：短语辨析