Ten minutes ______ an hour when one is waiting for a phone call.

Ten minutes ______ an hour when one is waiting for a phone call.
A、seemed
B、to seem
C、seem
D、seems
【正确答案】：D
【题目解析】：本题考查主谓一致。当主语是表示数目、时间、重量、距离等名词表示整体概念时，动词用单数。故选D。