根据旬意用括号内所给词的适当形式填空。

1．Thank you for ________ (organize)the class trip．

2．This is the ________ (child)playhouse．

3．His brother ________ (study)English very hard．

4．- Whose is this sweater?    - It's ________ (he)．

5．- What do you use to brush your ________ (tooth)?  - toothbrush．

6．- Who ________ (cook)the meals in our home?

   - My mother does．She is a very good cook．

7．- When is ________ (teacher)Day?  - On September 10th．

8．We are really ________ (excite)at the exciting news．

9．He is ________ (dress)up as a ghost．

10．Do you have ________ (some)books about Halloween?

球铁当等温温度在Ms附近时，获得（）组织，部分奥氏体化等温淬火，则获得（）。