Question

I know there __ Niagara Falls and Rocky Mountains in Canada.

Answer 1

is

Niagara Falls中的FALLS是指瀑布,而非复数.there be 句型中的be的单复数要按就近一致原则变换.所以应该是is.

例如:

There is a pen and two books on the desk.

课桌上有一个钢笔和两本书.

There are two books and a pen on the desk.

课桌上有两本书和一个钢笔.