A. at                         
B. on                        
C. in 

Amy: What are you going to do this weekend?
Sarah: I'm going to go shopping on Saturday morning.
Amy: And then?
Sarah: In the afternoon, I'm going to visit my grandparents. And in the evening I'm going to read books.
Amy: When are you going to the science museum?
Sarah: I'm going to the science museum on Sunday afternoon. Would you go there with me?
Amy: Sure.
(     ) Sarah is going to read books.
(     ) Sarah and Amy are going to the science museum.
(     ) Sarah is going to visit her grandparents.
(     ) Sarah is going to go shopping.

Mike: Hi, Joe. What are you going to do this weekend? 
Joe: Well, I usually have to study on Saturdays. 
Mike: Then, what about this Sunday? 
Joe: Well, my grandparents are going to visit us. You know, the whole family will have lunch together.  After  
       lunch,  I'll  go to school and meet my friends. 
Mike: Oh? Why will you go there? 
Joe: We are going to play football there.  After that I will go to see a Beijing Opera with my cousin. 
Mike: Beijing Opera? It's interesting.  Can I go with you? 
Joe: Sure. Shall we meet at 6:30 at the gate of the school? 
Mike: OK. I'll be there. 
Questions : 
(1) What does Joe have to do on Saturday?                                               
(2) What are Joe's grandparents going to do this Sunday?                                              
(3) Will the whole family have lunch together?                                                
(4) After lunch, what is Joe going to do?                                                 
(5) After the football game, is Joe going to see a Beijing Opera?                                                          
(6) Does Mike want to go with him?                                         
(7) Where are they going to meet?                                       
(8) When are they going to meet?