问题
选择题
| — I ______ for you for an hour. Where have you been? — I am so sorry. I went to help my mother buy some sauce. |
A. wait B. waited C. am waiting D. have been waiting |
答案
答案：D
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| — I ______ for you for an hour. Where have you been? — I am so sorry. I went to help my mother buy some sauce. |
A. wait B. waited C. am waiting D. have been waiting |
答案：D