-You were not in when I came over to your house. -Oh I for a friend from England at the

问题补充：

-You were not in when I came over to your house.

-Oh, I for a friend from England at the airport.

A. was waiting

B. had waited

C. am waiting

D. have waited

答案：

(答案→)A. was waiting

B. had waited

C. am waiting

D. have waited

解析：句意：--我到你家的时候你不在。--哦，我在机场等我从英国来的朋友。根据句意：等待朋友是和你到我家同时发生的，用过去进行时，所以选A。