问题 选择题

Both of my parents insist ______ a computer for me, but I don’t think it is necessary.

A.to buy

B.on buying

C.buying

D.in buying

答案

答案:B

insist on doing sth.是固定搭配的短语,on为介词,后面动词接ing形式。所以正确答案为B

单项选择题
单项选择题