问题

Have you tried to stop him __________eating too much junk food –Yes. But he still keeps ___________ eating a lot of fried chicken wings.
A:No problem. ;
B:I hope so. ;
C:That's all right. ; ;
D:That's a good idea.;
B:I hope so. ;
C:That's all right. ; ;
D:That's a good idea.;
正确答案是: