Các chất lấy ở dạng dung dịch màu vàng nâu là: A. Fe(NO3)3, FeCl3, Fe2(SO4)3. B. Cu(NO3)2, CuCl2, CuSO4. C. Fe(NO3)3, FeCl2, FeSO4. D. Cu(OH)2, Fe(OH)3, Fe(OH)2.

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.