—Must I take the medicine every day? —No, you _______.A. must B. mustn’ t C. needn’t
My little cousin enjoys ________ picture books before he goes to bed.
It was very late, but the teachers were ________ working hard in the office.
My teacher said to me with a smile, “Well, you ________ to worry about your lessons.”
Mr. Wang is always the first one to be in the office ________ he lives far from his company.
My boss had an importing meeting this morning, ________?A. hadn’t he D. hasn’t he C. doesn’t he D. didn’t he