We must not across the road.这句话哪里错了?快

We must not across the road.这句话哪里错了?快
We must not across the road.这句话哪里错了?
快

We must not across the road.这句话哪里错了?快
across 是介词,这样用的话句子缺少谓语动词.
可以有两种改法：We must not cross the road.或We must not go across the road.

must错了，它后面用not表示禁止，

across 是介词 改为 cross 动词

We must not across the road. across改为cross 或者在across前加上go
介词不能当动词使用

正确：We must not cross the road
across是介词不能做动词用
cross是动词