Question

---- What did Jack eat?
---- He ________ an apple before he ________!

A．ate; sleeps	B．had eaten; slept
C．eats; was sleeping	D．has eaten; slept

Answer 1

B

解析试题分析: 句意：杰克吃的什么，他在睡前吃了一个苹果。\eat 吃，sleep睡觉，根据What did Jack eat可知答句时态为过去时态，吃苹果与睡觉有时间先后，过去的过去用过去完成时，故选B。
考点： 考查时态。