Improve your English:

past tense forms Do or does?      
past tense Can I...      
perfect forms mustn't-don't-must      
         
       
Class 5
Class 6
Class 7
Class 8
Class 9
unit2-1 home and away unit2-7 unit2-8  
unit2-2   Raetsel von Jonas unit2-3-8  
unit2-3        
unit2-4        
can-1        
has got- have got        
my-his-her        
is-are        
he's- she's-it's-they're        
days-of-the-week        
unit3-1        
unit3-2        
Barker's story        
10-29        
wzg