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Did he start to write the book? 或者 Has he started to write t

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/12 14:53:59
Did he start to write the book? 或者 Has he started to write the book? 哪个正确?哪个更正式? 帮忙回答下 谢谢谢谢!
都正确.不同时态而已,第一句(过去时)侧重在过去某时所作的事情;第二句(现在完成时)侧重讲话前已开始做某事,但不一定做完.注意:短暂性有完成时,但不能与一段时间状语连用,如:He has died.(对) He has died for twoyears.(错)