Question

The world’s population is getting larger and larger, so scientists will have to ______ new ways to solve food problem.

A．catch up with

B．keep up with

C．come up with

D．make up with

Answer 1

C

詞義辨析。catch up with跟上；keep up with趕上；come up with想出；make up with與……和解。句意：世界人口越來越多，所以科學(xué)家們不得不想出新方法來解決食物問題。所以選C。