A. in
B. for
C. on

1. go, usually, school, I, to, foot, on (.) 
                                                                             
2. to, are, going, weekend, the, you, what, do, on (?) 
                                                                             
3. look, so, you, excited (.) 
                                                                             
4. birthday, June, her, in, is (?) 
                                                                             
5. writing, grandma, the, study, is, a,  in, letter (.)
                                                                             

1. -What does Sarah usually do on the weekend?                            
    -She usually              .

2. -What did you do on your holiday?              
    -I went to Beijing and              there. 

3. -What is Lisa doing now?                                      
    -She is            _ on the playground.

4. -Are you going to have a picnic this afternoon?    
    -No, we are going to            .         

5. Mike is             and               than  Ben.

Zip: What do you do on the weekend (周末)? 
Dog: I usually go to the park. Sometimes I go shopping. But not this weekend. 
Zip: Why? 
Dog: It's going to snow this Saturday. I don't want to go out of the room. 
Zoom: Really? I often play football. But I can't play this weekend, either. 
Monkey: I usually watch TV and play the piano on the weekend. But my TV doesn't work.
            And my piano teacher is ill. 
Zip: Shall we read some books together? My mom bought (买) me some new storybooks!  
Animals: Good idea! Zip!
(     ) 1. Dog usually goes shopping on the weekend.
(     ) 2. Zoom often plays football on the weekend. 
(     ) 3. Monkey is going to watch TV this weekend. 
(     ) 4. They are going to read storybooks this weekend.