it is the first time i have ever been on a stage这个玩意到底是什么时态的?费解死我了,还有就是这个i knew immediately there'd been a mistake 这个里面的there'd展开是什么玩意?

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/01 15:25:52

it is the first time i have ever been on a stage
这个玩意到底是什么时态的?费解死我了,
还有就是这个i knew immediately there'd been a mistake 这个里面的there'd展开是什么玩意?

主句 It is the first time是一般现在时
从句 I have ever been on a stage是现在完成时
第二句there'd展开是there had,这从其后的been就可以判断出来了.

have done结构是现在完成时时态。后面的句子展开应该是I knew immediately there had been a mistake. had done是过去完成时噢

这是我第一次上舞台。
我立刻知道出了一个错误。

现在完成时态。
had been a mistake