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How long have you been wear the braces的问题

来源：百度知道编辑：UC知道时间：2024/05/30 22:39:38

为什么How long have you been wear the braces要用the braces而不用braces就好了。还要加个the干嘛

the braces 起特指的作用。
我是英语教师，不明可再问。

加上the表示特指。以为前面一现在完成时的问法向你询问“这副背带你带了多久？”强调是这副，必须加定冠词the表强调特指。

braces前面必须加一个限定词，the或者your 都行

how long have you____? how long have you been 用法 How long have you been skating? How long have you been collecting shells？与How long have you collected shells?的区别 how long have you been here 和 how long have you stayed here 的区别 how long have you been keeping this to yourself? How long have you been married? 你们结婚多久了？ how long have Liji and Guoda been married? How long have you been like this?是什么意思？ How long have we been run?错在哪里