Question

переведите в passive voice: The British have traditionally based their food on beef , lamb,pork,chicken and fish.

Answer 1

Their food has traditionally been based on beef,lamb,pork,chicken and fish by the British.

Answer 2

The British  food  traditionally has been   based  on beef , lamb,pork,chicken and fish. - Британская еда  традиционно основана на говядине, баранине, свинине, курице и рыбе.