on the后面加什么詞性

　　In our company, quality is high on the agenda.

　　我們公司高度重視質量。

　　The university is on the left bank of the river.

　　大學在河的左岸。

　　It's one of the few countries where people drive on the left.

　　這是為數不多的幾個靠左行駛的國家之一。

　　The house came on the market last year.

　　這棟房屋去年就上市了。

　　Customers are thin on the ground at this time of year.

　　一年里這個季節顧客很少。