使用兆欧表前不必切断被测设备的电源。

句型转换。

1. He may be a scientist.(同义句转换)

   _____ he _____a scientist.

2.Kate should eat something.（改为否定句）

   Kate _____ eat _____.

3. Who will take care of the sick children? (同义句转换)

   Who will _____ _____ the sick children?

4. I have a sore throat.(对划线部分提问)

    What’s _____ _____ with you?

5. Our class meeting started at 4：30. (对划线部分提问)

    _____ _____ your class meeting start?