用适当形式填空 It often ___(snow) in Harbin in winter .There are black ____(cloud) in the sky.

题目

用适当形式填空 It often ___(snow) in Harbin in winter .There are black ____(cloud) in the sky.
理由理由理由……

答案

It often _snows(一般现在时,三单)__(snow) in Harbin in winter .
There are black __clouds__(cloud) in the sky.
clouds
n.云彩,白云（cloud复数形式）
There are要用复数.