They___friends since they met in shanghai?A.have made B.have become C.have been D.have had

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They___friends since they met in shanghai?A.have made B.have become C.have been D.have had
They___friends since they met in shanghai?A.have made B.have become C.have been D.have had

They___friends since they met in shanghai?A.have made B.have become C.have been D.have had
选C
自从他们在上海认识后,他们一直是朋友.
从那时到现在一直是,所以用现在完成时.
也可以以since为标志,有since的句子一般用完成时.
又因为be不是瞬间动词,所以选C

选C，因为只有C中的BE不是瞬间动词，其他的选项不能接后面的SINCE

They have been friends since they met in shanghai.
Be friend指成为朋友，表示一种状态。
用完成时是因为since they met in shanghai，从他们在上海见了以后。表示一直持续到现在还是朋友
所以，选C

They___friends since they met in shanghai?A.have made B.have become C.have been D.have had They___friends since they met in sh.A.have madeB.have becomeC.have turnedD.have been请说明理由 since GSB SINCE since是什么意思? since是什么意思? ever since since是什么意思 since when since 用法 SINCE用法 SINCE怎么样 since then可以说成 since that time since +延续性动词中 since 的意思? have since been 和 have been since 英语翻译since …… 现在完成时+since+句子 since什么意思