21、It was Saturday yesterday.                                            
22、Tomorrow is the lst of July.                                                 
23、Today is Friday.                             
24、It's cold and cloudy today.                                                 
25、It's cold and windy in winter in Nanjing.                                                                           
26、This is Lily's doll.                                       
27、They are playing with their friends.                                                                                  
28、He feels ill.                        
29、You're twenty years old.                                           
30、A snake lives in a forest.                                           
31、They are going to Australia.                                            
32、Our school is next to the Red Apple Cinema.                                                                            
33、My father is an engineer.                                           
34、He comes from Xi'an.                                       
35、I like grey best.                                    
36、The young girl is my sister.                                                       
37、People usually dress up in costumes at Halloween.                                                                              
38、She is our teacher.                                     
39、Peter is going to take part in a sports meeting next week.                                                                     
40、The rain will stop tomorrow.                                                        
41、These peaches are five yuan.                                                        
42、Jim milked cows the day before yesterday.