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题型：语法填空（单句） 题类：常考题 难易度：普通
外研（新标准）版2019-2020学年初中英语八年级上册Revision module B期末复习专题(一)词汇
—I don't think so. You can ask more ___by using “could” instead of “can” .
—I'm afraid not. We need another thirty dollars.
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