We can never follow the fashion because it __________ (change) all the time.

问题描述:

We can never follow the fashion because it __________ (change) all the time.

changes. 因为是all the time.
is changing 也可以

is changing
我们永远不能赶潮流 因为它一直在变化
表示一直在变化 可以看为是 现在进行时
所以用 Be + 动词ing 形式

is changing

changes