根据句意和首字母或汉语提示，拼写单词。

1. I am an English doctor. My best f_______ is an English doctor, too. 

2. The w_______ in the bedroom is Daniel's mother.

3. We all know there are seven days in a w_______.

4. Millie and her sister w_______ the coat like yours.

5. I like listening to the _______(收音机). What about you?

6. Let's _______(赶快), or we'll be late for school.

7. Can you see those _______(警察) over there?

8. Alice has six new _______(照片) of her family.

9. Can you show me where the _______(美国) is on the map?

10. Li Ming, what about _______(步行) to school?

下列属于外来原始凭证的是( )。

A．收料单

B．收款的收据

C．出差后的车票

D．经济合同