Question

—Does he know how to work out the problem ?
—Yes , he has         a good idea to solve it .

A．caught up with

B．kept up with

C．come up with

D．put up with

Answer 1

C

catch up with：跟上，赶上；keep up with：跟上；come up with 找到，想起；put up with：容忍.忍受，他已找到了解决问题的方法。故选项C。