--- I don’t mind telling you what I know.--- You_________. I’m not asking you for it. 

The well­dressed lady was caught stealing in the fashion shop. Strangely enough，she ________have done such a thing.

—I’m afraid you missed a fantastic lecture yesterday. How come you were absent from it?—If you _______ know, I asked for a day off and visited a relative of mine in hospital.

— Jim is very sick these days. He coughs so badly.— In my opinion, he really ________ listen to the doctor and cut down on smoking.

– Must I finish my work today?-- No, you _______.