The professor(教授) always has good solutions(解决方法)_____others' problems.A of B to C with D about请问为什么选B是固定搭配吗

问题描述:

The professor(教授) always has good solutions(解决方法)_____others' problems.
A of B to C with D about请问为什么选B是固定搭配吗

选B,是固定搭配.the solution to...