-The battery in my cell phone is running low.-- I that last night before we went t

问题补充：

---- The battery in my cell phone is running low.

---- I that last night before we went to bed.

A. was noticing

B. have noticed

C. had noticed

D. would notice

答案：

A. was noticing

B. have noticed

(答案→)C. had noticed

D. would notice

解析：考查时态。句意：—我的手机电池就要用完了。—昨天晚上在我们上床之前我就注意到了。根据句意说明我注意到是在昨天晚上睡觉之前，睡觉都使用了过去时，故注意是一个过去的过去的动作，使用过去完成时。故C正确。