Speak about different kinds of shops and different kinds of goods customers can buy in them. Решите пожалуйста,…

The most important rule of thumb is to try to be consistent in your usage. If you decide that you want to use American English spellings then be consistent in your spelling (i.e. The color of the orange is also its flavour — color is American spelling and flavour is British) , this is of course not always easy — or possible. The following guide is meant to point out the principal differences between these two varieties of English.