His first responds was to say no ,later however he changed his mind.

他最初的反应是不同意，可是后来他改变了主意。

I drink black coffee,whereas he prefers its cream.

我爱喝青咖啡，而他喜欢喝加奶油的。

He earns eight thousands pounds year,whereas he gets least twenty thousands pounds .

他一年挣8千英镑，而他一年至少获2万英镑。

复合句：复合句由一个主句和一个或一个以上的从句构成。

I was about leave ,when the telephone rang.

我在正准备离开，电话响了。

并列复合句：并列复合句指并列句中含有一个或更多的从句。

Alltogether Beethoven wrote nine sinfonias,but most of them was wrote after he had lost his hearing.

贝多芬一个写了9部交响乐，其中大部分是在他耳聋后写的。