1 using gas instead of burning coal
2 we reduce the amount of water we use everyday
3 should use energy-saving appliances
4 taking care of the children
5 care of our children when we were away
6 taking the garbage to recycling centers
7 that you didn't phone me
8 my mother was busy, she couldn't go to the party
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GIÚP MÌNH CÁC CÂU KHOANG TRÒN VỚIII ẠAA
