They arrived Shanghai the evening of April 10th.A. at atB. in inC. in onD. at on

问题补充：

They arrived Shanghai the evening of April 10th.

A. at, at

B. in, in

C. in, on

D. at, on

答案：

A. at, at

B. in, in

(答案→)C. in, on

D. at, on

解析：考查介词。arrive in 后加大的地点 ，arrive at 后加小的地点。而具体的某一天前用介词on.