帮忙造下过去完成时的句子，在线等！急！！

来源：百度知道 编辑：UC知道 时间：2024/05/13 16:43:30
用以下4个词中的任意3个。
since ， for ， before ，yet
造成过去完成时的，谢谢啊

Since you left, I have been alone in this city.
自从你离开，我一直独自在这个城市生活。

He hasn't done much yet.
他做的还不很多。

I have been in China for 3 years.
我来中国已经3年了。

I had had acomplished my assignment before I watched TV for i don't want you to rebuke and hit me since you have such giant hands!

I have learned English since 2003.

I have been to Beijing for three years

He hasn't done much yet.

搂住分给我吧

i had been a volunteer since i was 15 years old.
我从15岁起就是一个志愿者了
i had been waiting for you for an hour yesterday.
我昨天等了你1个小时!
i hadn't watch the game yet.
我还没看过那场比赛呢.