帮帮忙翻译英文(PS:不要机译的,谢谢!)

Can you tell me why don't you come here today?

This is the person who once helped me.

Would you mind me smoking here?

All of our family was watching CCTV NEWS at seven o'clock last night.

To pass the test that we should study hard

If the weather is ok tonight,we shall go for a walk.

1.你能解释一下今天为什么不能来吗?
Can you explain the reason why you didn't come?
2.这就是哪个曾经帮助过我的人.
This is the person who helped me before.
3.我在这里吸烟,你介意吗?
Would you mind my smoking here?
4.昨天晚上七点我们全家都在看中央电视台的新闻联播.
Our family all watched news from CCTV1 at seven o'clock yesterday evening.
5.为了能通过考试,我们应该努力学习.
We should study hard in order to pass the examination.
6.如果今晚天气好,我们就去散步.
If weather permits, we will go have a walk tonight.

can you tell why you can't come here today?
this is the man that once helped me.
would you mind my smoking here?
my whole family w