mountains后面be动词用什么

mountains后面be动词用什么？

用are，wereThe mountains are rich in resources.

山区的资源很丰富。

The mountains were very picturesque.

这片山峦风景秀丽。Mountains rose in the distance.

远处山峦叠起。

They live up in the mountains.

他们住在山区。

There are mountains to the north.

北面有山。

A storm blew up over the mountains.

山上狂风大作。

We went on a trip to the mountains.

我们到山里去旅游了。

mountains后面be动词也就是谓语动词用are 或者过去形式were 复数形式。