问题
选择题
| While we ________ tennis yesterday, it ________ to rain. |
A. played, was starting B. played, started C. were playing, was starting D. were playing, started |
答案
答案：D
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| While we ________ tennis yesterday, it ________ to rain. |
A. played, was starting B. played, started C. were playing, was starting D. were playing, started |
答案：D