2. In the library, you _______ be quiet. You _______ talk with each other.(A) have to﹔mustn’t (B) do
問題詳情
2. In the library, you _______ be quiet. You _______ talk with each other. (A) have to﹔mustn’t (B) don’t have to﹔shouldn’t (C) need to﹔won’t (D) don’t need﹔can’t