He has been ________ the overall success of the project all this month.A.making a contribution to achieveB.making contribution to achievingC.making a contribution to achievingD.made contribution to achieve
网友回答
C解析本题考查contribution的搭配用法。由于to用在句中易被当成不定式的符号，所以本题易误选A项。值得注意的是此处to为介词，其后应接名词或动名词。