Cách nhận biết các dung dịch sau: 1. NaOH, HCl, K 2 SO 4 2. BaCl 2 , H 2 SO 4 , KCl 3. KOH, NaNO 3 , NaCl

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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.