... Câu 21: Chọn phương án (A, B, C D) để hoàn thành câu sau: 'Would you like another cup of coffee?' - ' ' A No, thank you I've had enough B You're so nice C My pleasure D Fine, thank you Câu 22 : ... products and need more and more water We live in a world of water But almost all of it — about 97% - is in the oceans This water is too salty to be used for drinking, farming, and manufacturing Only...