1. Các kim loại tác dụng với dung dịch Cu(NO3)2 tạo thành kim loại đồng là ? a) Zn, Pb, Ag b) Mg, Fe, Ag c) Mg, Zn, Al d) Na, Mg, Al 2. Đơn chất tác dụng với dung dịch H2SO4 loãng giải phóng khí hidro là ? a) Bạc b) Đồng c) Sắt d) Cacbon

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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.

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

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