根据句意和首字母提示完成下列句子。  

1. The students are c         the classroom.  

2. Susan and Mary are talking o            the phone.  

3. My father likes r           newspapers.  

4. She lives on the ninth floor of this new a            building.  

5. This TV s            is boring. Let's go to the movies.

下列酱料中，______是家常海参必需的调料。

A．海鲜酱

B．排骨酱

C．甜面酱

D．郫县豆瓣酱