---Where were you when I called at your house this morning?
---Oh, I_____ for a friend from Tokyo at the airport.
A.had waited | B.am waiting | C.have waited | D.was waiting |
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---Where were you when I called at your house this morning?
---Oh, I_____ for a friend from Tokyo at the airport.
A.had waited | B.am waiting | C.have waited | D.was waiting |