课程开发资料主要包括理论知识、______、测试题、游戏和故事。
A．实践经验
B．相关案例
C．多媒体设备
D．提问内容
参考答案：B
句型转换。
1. We have English every day. (对画线部分提问)
do you have English?
2. He often watches TV. (改为否定句)
He often TV.
3. Is Bill healthy? (作否定回答)
No, ．
4. Children like Animal World best. (对画线部分提问)
children like best?
5. She often drinks milk. (改为一般疑问句)
she often milk?
“5.12”汶川大地震后，没有出现大的疫情，各种消毒剂的作用功不可没。下列物质不能用作饮用水消毒剂的是（ ）
A．O3
B．ClO2
C．Cl2
D．
