I. điền các giới từ thích hợp vào chỗ trống:
1> Will they come ____ dinner tonight?
2> There was a wide selection ____ vegetables ____ the stall.
3> They stopped ___ a fruit stall to buy some oranges.
4> She added a little salt ______ the spinach.
5> Hoa set the table _____ plates, bowls, chopticks, spoons and glasses.
6> You should eat plenty _____ fruit and vegetables.
7> Exercise is one of the important keys ______ of a healthy lifestyle.
8> Vegetables are very good _____ your health, but you should wash them well ____ water.