改为反义句,问问问问!!!!!!!

The dictionary must be Sammy's.

反义句：The dictionary can't be Sammy's.

注释：must be(肯定是) --- can't be (不可能是)

不能用mustn't(绝不能)，用于表示禁止。

The dictionary must be Sammy's, isn't it?

The dictionary may not be Sammy's.

The dictionary won't be Sammy's.

The dictionary musn't be Sammy's