you can never imagine what great difficulty l have had( )him to stop smoking.a.persuaded

问题描述:

you can never imagine what great difficulty l have had( )him to stop smoking.a.persuaded
b.to persuade c.persuade d.persuading

to persuade 表示目的~
为了说服他戒烟,你根本想象不出来我们经历了什么困难