Variant 1 You could have come first and won the race if you … faster

19. What is the main idea of the text?

A) Many plant foods are quite rich in protein. B) Well-balanced diets must include fruits.

C) Most people know nothing about plants. D) Vegetarians can survive without protein.

20. Which of the following gets the biggest amount of calories from protein?

A) Nuts and seeds. B) A certain kind of beans. C) Broccoli and certain fruits. D) Junk food.

21. What do people mostly ask the author about?

A) How does he live without meat? B) How can he obtain protein?

C) How does he live free of protein? D) Where does he go to take protein from plants?