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?
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?
为什么“this is the first time i have baked it"为什么后面用现在完成时?
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 was…before…后面用什么时态呢?
it is high time后面用什么时态
it is the first/second.time that+现在完成时
it is/was the first time +that+clause中从句用什么时态?
There is a time when 和it is the first time后的句子是用什么时态?
It is time that 和it is high time that怎么用什么区别后面加的时态
It was for the first time that后面从句用什么时态
it is the first time和it was the first time后面接的时态各是什么?
it is/was the time that it is/was the frist time that 后接从句用什