it's the first time 后面为什么要接现在完成时,
为什么“this is the first time i have baked it"为什么后面用现在完成时?
it was the first time 后面为什么要用过去完成时
This/It is the first/second time+that从句,that从句谓语为什么要用现在完成时
It will be the first time that 后为什么用现在完成时代替将来完成时
it is the first time that I -have come to BeiJin为什么要用完成时啊,后面
it is the first/second.time that+现在完成时
it is the first time和it was the first time后面接的时态各是什么?
it's the first time that
It's the first time ,for the first time ,the first time ,at
it is the second time 后为什么用现在完成时呢?如果把is 改成was 后面用什么时态呢?
This is the first time…为什么是现在完成时?而不是一般现在时?
it's the first time you visit this city,________?