Her mother can't leave her alone.
Her mother can't leave her ______ ______.
by herself
答:选C won't 反义疑问词 “_______you have dinner with us tonight? ”是一个反义疑问句。 使用won't表请求详情>>
答:may may not need needn't must mustn't (or needn't in less ...详情>>
问:I'm very sorry,but I can't come
答:but在此处是"但是"的意思,表示转折,委婉的语气. 此词不可放在句首详情>>