作业帮 > 英语 > 作业

When she heard the doorbell (ring),she rushed to the door适当形

来源:学生作业帮 编辑:拍题作业网作业帮 分类:英语作业 时间:2024/05/26 15:47:27
When she heard the doorbell (ring),she rushed to the door适当形式
When she heard the doorbell ring,she rushed to the door.
再问: 为什么?
再答: 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
再问: This kind of book is very popular. It (sell) out in an hour适当形式
再答: It‘ll be sold out in an hour.