—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. has waited              

---You were out when I dropped in at your house.

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

1. A.
   was waiting
2. B.
   had waited
3. C.
   am waiting
4. D.
   have waited

---You were out when I dropped in at your house.
---Oh,I    for a friend from England at the airport

1. A.
   was waiting
2. B.
   had waited
3. C.
   am waiting
4. D.
   have waited

—You were out when I dropped in at your house.
—Oh, I ________ for a friend from England at the airport

1. A.
   was waiting
2. B.
   had waited
3. C.
   am waiting
4. D.
   has 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

— 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．a(chǎn)m waiting      D．have waited