【题目】—Daniel, why are you so late? We _____ you would be here an hour ago.
---Sorry, I _____ know you were all here.
A. thought; didn’t B. think; don’t
C. thought; don’t D. think; didn’t
在线课程【答案】A
【解析】考查时态；因为“认为你一个小时之前就到这里”，“认为”是已经发生的动作，所以用过去时态，同样“不知道”也是已经发生的动作，所以也用过去时态，故选A.