Question

讀一讀，寫一寫，注意找規(guī)律。   

1. twenty, nineteen, eight.een,_   __,__  __,__  __,         .
2. two, four,__  __,__  __,ten,__  __,_  ___.
3. eleven,__  __,___  _,_   __, fifteen, sixteen.
4. one, two, three, four,__  __,__  __,__  __.
5. nineteen, seventeen,        _,_       ,eleven,_       .

Answer 1

1. seventeen, sixteen, fifteen, fourteen
2. six, eight, twelve, fourteen
3. twelve,thirteen,fourteen  
4. five,six,seven 
 5. fifteen,thirteen,nine