—How do you deal with the agreement between the company and the customers?
—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;make
—How do you deal with the agreement between the company and the customers?
—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;make
B
前空key to...中to为介词，后应接名词性的词语；后空是过去分词作定语。