phân loại các hc sau $C_6$$H_{12}$ , $C_4$$(HCO_3)_2$ , $C_2$$H_5$OH , $C_3$$H_8$ , CO a) Hidrocacbon, chỉ có 2 ngtố C; H b) dẫn xuất Hidrocacbon: ngoài 2 ngtố C và H , còn có 1 số ngtố khác

Choose the best answer.

I think you should buy _____  pack of mineral water instead. And you can also buy _____  snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______  cookies and soft candies.

Choose the best answer.

We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

Choose the best answer.

I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.