I don't think you have eaten so many crisps ,____?

A. do I    B. haven't you    C. have you     D. don't you

I don't think a tennis bat ________ be so expensive. Is there any room for bargaining?

A．may 

B．should

C．must 

D．need

I don’t think Tom’s remarks on his monitor are ______；he is not supposed to say so.

I don't think Tom's remarks are________；he is not supposed to say so.

I don't think Tom's remarks are________；he is not supposed to say so.