Choose the correct answer A, B or C to fill in each blank in the following passage (Chọn câu trả lời đúng A, B hoặc C để điền vào mỗi chỗ trống trong đoạn văn sau)

My grandparents live in the countryside, and they have a big garden. They spend a lot of time working in it. When I visit them in summer, I often join them in the garden, and they teach me a lot of things about (1).

Vegetables come in different shapes, sizes, and (2). They also grow differently as well. Carrots and potatoes grow (3) the ground. We can't see them. Some kinds of beans (4) a high net to grow. Cabbages and cauliflower grow above the ground. My grandfather says that coloured vegetables are very good for health (5) they provide a lot of natural vitamins. White cauliflower is (6) in vitamin C. Orange carrots and red tomatoes contain vitamin A. (7) have vitamins A, B, C, and E. My grandfather also says that gardening is a good way of (8). It helps him keep fit and strong.