My family always have a party the evening of October 1 and the party starts 8. 00 p. m.

问题补充：

My family always have a party the evening of October 1, and the party starts 8. 00 p. m.

A. at; in

B. in; on

C. at; on

D. on; at

答案：

A. at; in

B. in; on

C. at; on

(答案→)D. on; at

解析：考查介词用法。第一空在具体的某一天用on，第二空时间点前用at。