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When she heard the doorbell (ring),she rushed to the door适当形式
人气:272 ℃ 时间:2019-11-06 05:03:48
解答
When she heard the doorbell ring,she rushed to the door.为什么?语法描述:跟在 hear 后的非谓语动词不定式可省略 to实际应用:现实生活中的表达方式This kind of book is very popular. It (sell) out in an hour适当形式It‘ll be sold out in an hour.
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