-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
网友回答
(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。