资源资源简介：

1．Where are the two speakers?
 A．In a physics lab. B．In a library. C．In a museum.
2．What did the two speakers do this afternoon?
 A．Prepared a speech. 
 B．Learned some good news.
 C．Listened to a lecture.
3．Who is Mr. Roger Peterson?
 A．A visitor. B．A patient. C．A doctor.