题目内容
15．-Where is Betty？-She __________ basketball on the playground．（ ）
| A． | plays | B． | played | C． | will play | D． | is playing |
分析 -Betty在哪？--她正在操场上打篮球．
解答 答案：D 根据"Where is Betty？"，可知答句应回答她现在正在什么地方，做什么．应用现在进行时（be+doing）．根据主语she，可知be用is，A选项为一般现在时；B选项为一般过去时；C选项为一般将来时．故选D．
点评 本题考查时态问题．有时间标志词的，根据时间标志词来判断．没有的，根据句意来判断说话者想要表达的含义．
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