Dana couldn't sleep last night. She (can't-is-must didn't) be tired.؟
 
         
          
          إجابة الطالب المختصرة من خلال موقع بوابة الإجابات هي
   
           
           must
            The best option here is **mustn't**.
*   **Mustn't** implies a strong prohibition or that something is highly unlikely. Since Dana couldn't sleep, it's highly unlikely she was tired.
    The complete sentence: "Dana couldn't sleep last night. She **mustn't** be tired."
The other options don't fit the context:
*   **Can't** implies inability, which doesn't fit the context.
*   **Is** is grammatically incorrect.
*   **Didn't** doesn't make logical sense in this context.
           
اذا كان لديك إجابة افضل او هناك خطأ في الإجابة علي سؤال  Dana couldn't sleep last night. She (can't-is-must didn't) be tired. اترك تعليق فورآ.