Join the sentences. Use relative clauses: 1.He is a person. He is trusted by all his friends. ………………………………………………………………………………………………… 2. “Happy new year” is a song. It is always sung on the New Year Day. ………………………………………………………………………………………………… 3.On Women’s day, we gave our mother a big bunch of flowers. We cut them from the garden. ………………………………………………………………………………………………… 4. My father works for a company. The company makes cars. ………………………………………………………………………………………………… 5. They love the city. They spent their holiday there. ………………………………………………………………………………………………… 6.I stopped in a small town. My sister was working there. ………………………………………………………………………………………………… 7. We remember the day. We met each other on that day. ………………………………………………………………………………………………… 8.The picture has been stolen. You were talking about it. …………………………………………………………………………………………………… 9. Mr. Lee teaches Chemistry. Her daughter is studying abroad. …………………………………………………………………………………………………… 10. Do you know the reason? He left his hometown because of it. ……………………………………………………………………………………………………

Bài 3: Lập các phương trình hóa học theo sơ đồ sau: a/ Kali oxit + nước → kali hidroxit. b/ Kẽm + axit sunfuric → kẽm sunfat + hidro. c/ Magie oxit + axit clohidric → magie clorua + nước. d/ Canxi + axit photphoric → Canxi photphat + hidro. e/ Oxit sắt từ + axit clohidric → Sắt (II) clorua + sắt (III) clorua + nước.

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