根据所给提示，完成句子。每空一词，含缩略词。

1. They are girls.(改为单数句)

_______ _______a girl.

2. I am Mary Green.(改为同义句)

________ ________Mary Green.

3. He's my teacher.(改为一般疑问句)

________he ________teacher?

4. His cousin has a dictionary.(改为否定句)

His cousin ________ ________a dictionary.

5. Do you have a Music Festival at school,boys and girls?(做肯定回答)

________ , _______ _______.

6. The book is ten yuan.(对划线部分提问)

________ ________is the book?

7. I can see some keys on the dresser.(对划线部分提问)

________can you_______on the dresser?

8. She has a black watch.(变为复数句)

They _______black ________.

9. What's her age?(改写同义句)

________ _________is she?

10. 你需要运动包吗?(完成译句)

Do you need bags_________ __________?

11. 让我们去那家书店看看吧!(完成译句)

Let's go and have a ________ _________that book store.

12. 他经常和他父亲一起去看京剧。（完成译句）

He_________goes to see Beijing Opera ________his father.

工业烟尘排放量占烟尘排放总量的比重最低的年份是( )。

A．2005年

B．2006年

C．2007年

D．2008年