We should go to school at 8:00 oclock school morningsA. onB. inC. atD. of

问题补充：

We should go to school at 8:00 oclock school mornings．

A. on

B. in

C. at

D. of

答案：

(答案→)A. on

B. in

C. at

D. of

解析：句意：我们应该去学校上学的早上八点。在早上通常说in the morning，但在特定一天的早上则使用介词on，所以选A。