8.I've heard much about you.

我知道很多关于你的事。

还可说成：

I know a lot of thing about you.

I know much about you.

谚语：

Hear much, speak little.

多听少说。

9.We have been ten-year friedns.

我们已经是10年的朋友了。

还可说成：

We have known each other for ten years.

I have been friends with him for ten years.

谚语：

A friend to all is a friend to none.

滥交者无友。

10.What's happening recently?

最近在忙什么？

还可说成：

What have you been up to?

What are you doing these days?

应用解析：

as it happens 碰巧赶上，恰好出现；happen on 碰巧赶上；be likely happen 可能要发生；happen to say 碰巧说起，偶然提到

11.I know your business is going strong recently.

我听说您最近生意兴隆啊！

还可说成：

I heard that your business is being prosperous these days.

Business is on the up grade at last.

12.I am sorry ti hear you are doing a losing business.

很遗憾听说您生意不顺。

还可说成：

Sorry to hear that your business is dull.

I feel sorry about that your business is stagnant now.

谚语：

There is no time to lose.

机不可失失不再来。