— Must I pay the fine, sir?

— __________. You shouldn’t have driven drunk.

A. That goes without saying                     B. Not to worry

C. I have got it                                  D. Good for you

— You didn’t invite John to the party?
　　 — ________ him, too?

——You didn’t invite Mary to the ball?

    ——____ her, too?

A、Must I invite      B、Should I have invited C、Must I have invited   D、Should I invite

—Why didn’t you remind him of the possible danger?

—But what _______ otherwise? He never listens to me.

A. could I do   B. could I have done    C. should I do         D. must I have done

—Must I turn off the gas after cooking ? 

--Of course . You can never be ___ careful with that.

    A．enough          B．too            C．so             D．very