UC知道It is five years since we began learning English
来源：百度知道 编辑：UC知道 时间：2024/06/24 10:16:08
既然有since为什么要用it is?
这是个强调句，强调我们学习英语已经5年了。强调句型：it +be+被强调部分+其它部分。
我只能说这是一种结构，即it is+时间 since +过去时，表示做某事有一段时间了
用It is是因为这种句式并不强调时态，用It is即可…但改为It has been亦可。
this year's rice output in our country is five times---it was ten years ago .
What is your one-year career goal? What is your five-year career goal?
It is almost five years____we saw each other last time.
It is five kilometers ____ the nearest placeof interest.
It is said that the value of stamps ______every year.
John is twenty year old ,but he has only five birthdays.Why? 是什么意思
It has five letters. It has left if you take two letters away. What is it?
“year，give me five.”是什么意思？
It may be five years ( ) it is possible to test this medicine on human patients.
In which year it is more likely for newspapers to become more and more popular?