句型转换。（根据要求改写下列句子，每空一词。）

1. What do you think of the soap opera? (同义句) 

    _______ do you _______ the soap opera?

2. Tom had to stay at home yesterday. (一般疑问句)

    _______Tom _______ to stay at home yesterday?

3. Wear sports shoes for gym class. (否定句)

    ________ ________ sports shoes for gym class.

4. It is an interesting book. (改为感叹句)

    _______ _______ interesting book!

5. They are going to have a picnic this Sunday. (改为一般疑问句)

    _______ they going to _______ a picnic this Sunday?

在昆明世博园中，山东省齐鲁园里的“泰山”是用从山东省运来的花岗石( 不与酸反应) 堆砌而成的，其中一小部分是用云南石林的石灰石补充的，鉴别这两种石料的方法是分别在石料样品中滴加________ ，产生________ 的一种即是________ 石。