Dãy các bazơ không tan là: aPb(OH)2; Zn(OH)2; Fe(OH)3 bKOH; Ba(OH)2; Ca(OH)2 cCu(OH)2 ; Ca(OH)2; Fe(OH)2 dFe(OH)3; KOH; Mg(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.