题目

Millions of Chinese patients expect China's medical care system ______ next year.     A. to be reformed    B. to have been reformed  C. to be reforming   D. to have reformed 答案：A钢笔每支15元，笔记本每本4元，张老师带了100元，买了3支钢笔后，剩下的钱最多能买几本笔记本？再添几元钱，又能买一本笔记本？