sit的现在分词

　　例句

　　I could sit and watch the river all day long.

　　我可以整天坐在这里看那条河。

　　We found a large flat rock to sit on.

　　我们找了一块可以坐的大而平滑的石头。

　　They have been sitting on my application for a month now.

　　他们压着我的申请不办有一个月了。

　　I don't get much exercise sitting in the office all day.

　　我整天坐在办公室很少运动。

　　There were several young people sitting around looking bored.

　　有几个年青人闲坐着，一副无聊的样子。