--How do you deal with the.--The key ___the problem is to meet the demand____by the customers

题目

--How do you deal with the.--The key ___the problem is to meet the demand____by the customers
A to solving;making B to solving;made
C to solve;making D to solve ;made
B
我也不懂

答案

选B
the key to “.的关键是.”是固定短语,to是介词,后面用ing形式.排除C,D
demand是由顾客定的,所以是被动的,排除A
你是怎么处理···?
处理问题的关键是满足顾客的需求!