watch的过去式和现在分词怎么写

The shepherds watched their flocks.

牧羊人看守着自己的羊群。

I could sit and watch the river all day long.

我可以整天坐在这里看那条河。

You need to reset your watch to local time.

你需要把表调整到当地时间。

By my watch it is two o'clock.

我的'表是两点钟。

Thousands of people paid good money to watch the band perform.

成千上万的人花很多钱去观看这支乐队的演出。

Could you watch my bags for me while I buy a paper?

我去买份报纸，你能替我照看一下我的包吗？

The child was watching it all with big round eyes.

这孩子睁着又大又圆的眼睛看着这一切。

Parents should control what their kids watch on television.

父母应该限定孩子看什么样的电视节目。