It's because I have a bad cold.

那是因为我患了重感冒。

Please inform him that Chen Gang was calling.

麻烦你通知他陈刚来过电话。

That sounds very nice. When will it be?

听起来真不错，什么时候呢？

The name is Wang, and the number is 363-1127.

我姓王，电话是363-1127。

I'm calling to know if it would be at all possible to cancel our reservation.

我打电话想知道我们的预约是否有可能取消。

Our tow truck's being repaired.

我们的拖车正在修理呢。