Conversation history has disappeared i have a conversation that has about a month of context in there which today, seemingly decided to remove itself. 我们在使用ad软件绘制电路图的时候，在编译的时候会碰到net xx has only one pin的现象。 接下来我们详细介绍一下如何解决。 Has是have的第三人称单数形式，had是have的过去式和过去分词。 1、区别： have、has和had只是一个词的不同形式，都表示“拥有（表示一种状态）”的意思，但三个词在 时态和人称 的使.
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The phone number/s you are using has/have been used too many times already. 展开全部 have和has的用法： 1、have和has与主语搭配：主语为第三人称单数时用has，其余人称都用have。 2、have和has的意思有：有的，“吃、喝”，“拿、取得、得到”。 拓展资料 have 1. I has 还是have?应该是i have。 have一般在主语是i,you或主语是复数的时候用，而has在主语是he,she的时候用，但have都表示“有”。
Tom has gone to shanghai for two.
If google chrome is set as your default browser but microsoft bing keeps opening, it could be due to a few reasons. Has been 表示那人去了已经回来了 has gone 表示那人去了还没回来,还在哪儿 例如:tom has been to shanghai twice,now he is planning for another one. Either by yourself, or it may be a recycled number which has been used previously with. 4、has/have been是现在完成时，has用于第三人称单数，had been过去完成时，跟前者相比，比前者更为过去。 2、when i met her, she had just returned from a job interview 4、he arrived.
Here’s how to fix it:
