6. This cake and that cake taste are the same.

- This cake tastes the same as that cake.

7. Food in San Francisco and food in New Orleans are different.

- Food in San Francisco is different from food in New Orleans.  

8. His shoes and my shoes are the same.

- His shoes are the same as mine.

9. American English and British English are slightly different.

- American English is slightly different from British English.

10. People say I and my mother look just the same. 

- People say I look the same as my mother.