根据句意用括号内所给单词的适当形式填空.

1．I'm a singer and _________(I) name's Dale.

2．Is _________(she) book new?

3．It's nice __________(meet) you.

4．Let _________(we)learn and read English.

5．What's the __________(boy) name?

6．His __________(one) name is Jones.

7．Six and eight ___________(be) fourteen.

8．In the small village(村子), there are only nine __________(family) now.

9．How are ____________(your)?

10．Can you ____________(answer) the question.

（1）金属腐蚀一般可分为化学腐蚀和          腐蚀。

（2）炒过菜的铁锅未及时洗净容易发生腐蚀。

①若铁锅内残液呈弱酸性，则腐蚀属于            （填“吸氧”或“析氢”，下同）腐蚀；若残液中主要含有NaCl，腐蚀应属于             腐蚀。

②吸氧腐蚀中，负极的电极反应式为                        。

铁锈中铁的化合价为                     。