at the cafeteria before，Tina didn’t want to eat there again. (2013·山东，33)
A. Having eaten
B. To eat
C. Eat
D. Eating
网友回答
(答案→)A. Having eaten
B. To eat
C. Eat
D. Eating
解析：
考查非谓语动词作状语。句意为：以前在那家自助餐吃过饭，蒂娜不想再去那里吃了。解答本题的关键是分析句子结构。句子的主语Tina与eat构成主动关系，需用doing；再根据句中的关键词before知“eat”这一动作发生在主句谓语动词“didn’t want”之前，故用doing的完成形式having done，因此本题选having eaten。