—You were out when I dropped in at your house. —Oh, I ________ for a friend from England at the airport. 
#104756
A
was waiting
B
had waited
C
am waiting
D
has waited
推荐题目
The telephone _______, but by the time I got indoors, it stopped.
#104961
A
had rung
B
was ringing
C
rings
D
has rung
The mother who lost her son insisted that the careless driver      for the traffic accident ___      yesterday .
#103261
A
was to blame ; happening
B
be to blame ; happened
C
be blamed ; was happened
D
was to blame; had happened