—You were out when I dropped in at your
题型:选择题
问题:
—You were out when I dropped in at your house.
—Oh,I for a friend from England at the airport.
A.was waiting
B.had waited
C.am waiting
D.have waited
—You were out when I dropped in at your house.
—Oh,I for a friend from England at the airport.
A.was waiting
B.had waited
C.am waiting
D.have waited