用所给形容词的最高级填空。

1. Autumn is ______ (good) season in a year.

2. Who is ______ (tall), Ann, Meimei or Mary?

3. The basket is ______ (heavy) of all. Let me carry it.

4. Today is a fine day. It is ______ (fine) day in this week.

5. This storybook is ______ (interesting) of the three.

为什么3台及3台以上的局部通风机不能同时向1个掘进工作面供风？