请将下面这段话翻译成英文：
1.床上躺着一个又老又病的男人。
2.深草丛中的某个地方有一台生锈的割草机，那就是我答应某日要修理的割草机。
3.靠墙的地方曾经有架钢琴。
4.他脑子一定出问题了。
参考答案:
1.On the bed there lay an old sick man.
2.Buried somewhere in deep grass there is a rusting lawn mower which I have promised to repair one day.
3.There used to be a piano standing against the wall.
4.There must be something wrong with his brain.
