Dãy chất nào sau đây đều tác dụng với dung dịch NaOH: A.HCl, CuSO4, FeCl2 B. Al, BaCl2, CaCO3 C. NaCl, CuCl2, H2SO4 D. FeO, HCl, Na2SO4 Giúp e với ạ

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.