Rick left class early because he.a headache.A.had B.have C.used to have D.was having.

问题描述:

Rick left class early because he.a headache.A.had B.have C.used to have D.was having.
请帮我选正确答案,以及原因是什么?

答案A
因为是left,就表明是过去式,显然排除B,
而C,used to do表示过去常常做某事,
D是过去进行时,句意与时态不符.