I was in the hospital for several weeks.

我在医院里住了几个星期了。

It doesn't matter to me.

两个都可以。

I used to work until nearly 6:00 o'clock each day.

我过去每天常工作直到将近6:00点钟。

It'll probably clear up this afternoon.

今天下午可能放晴。

If I have enough money,I'm going to take a trip abroad.

如果我有足够的钱，我将在国外旅行。

He wants to change his appointment from Monday to Wednesday.

他想要把他的约会从星期一改到星期三。