— He said he would arrive six o’clock. But now it’s nearly seven. — Maybe he will arrive

问题补充：

— He said he would arrive six o’clock. But now it’s nearly seven.

— Maybe he will arrive a few minutes.

A. at; in

B. in; in

C. after; after

D. in; after

答案：

(答案→)A. at; in

B. in; in

C. after; after

D. in; after

解析：表示在具体的时间前用介词at，表示在多久时间以后通常用介词in，故本题选A。