You look very tired.Were you sleeping at all last night?

题目

You look very tired.Were you sleeping at all last night?
----You look very tired.___ at all last night?
----No,not really.I am tired out now.
A Do you sleep B Did you sleep Cwere you sleeping DHad you slept
为何选C

答案

你昨晚睡的好吗
因为你昨天晚上一直在睡觉 所以应该是正在进行时 所以用过去正在进行时