题目内容
16.We _________ basketball on the playground when it _________ to rain.( )| A. | played; began | B. | were playing; was beginning | ||
| C. | played; was beginning | D. | were playing; began |
分析 当天开始下雨的时候我们在操场上打篮球.
解答 答案:D.结合句意可知表达的是过去的事情,begin的过去式是began,主句表达的是过去正在进行的事情用过去进行时was/were+doing,主语we,故were,故答案是D.
点评 过去进行时可以表示在过去某个时间点发生的事情.时间点可以用介词短语、副词或从句来表示.如:What was she doing at nine o‘clock yesterday?昨天晚上九点她正在做什么?(介词短语表示时间点) When I saw him he was decorating his room.当我看见他的时候他正在装饰房间.(when从句表示时间点)
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