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