[1996全国] The patient was warned oily food after the operation. A. to eat not B.

A. to eat not

B. eating not

C. not to eat

D. not eating

题目考察动词warn的用法

(1)警告；提醒；告诫（常与of,against,to do连用）

例如：Shewarned me about the dangerous road, so I crossed it carefully.她提醒我这条马路很危险，因此我过马路小心翼翼。Momalways warn me to take care of my things.

(2)事先通知（常与that连用）

例如：Thewhistle warned visitors that the ship was ready to sail.汽笛通知旅客船即将启航。