读一读,写一写,注意找规律。
1. twenty, nineteen, eight.een,_ __,__ __,__ __, .
2. two, four,__ __,__ __,ten,__ __,_ ___.
3. eleven,__ __,___ _,_ __, fifteen, sixteen.
4. one, two, three, four,__ __,__ __,__ __.
5. nineteen, seventeen, _,_ ,eleven,_ .
1. seventeen, sixteen, fifteen, fourteen
2. six, eight, twelve, fourteen
3. twelve,thirteen,fourteen
4. five,six,seven
5. fifteen,thirteen,nine