1 We are going to organise more green activities in our living area next month.

`-` plan + to V `=` be going to + Vinf : dự định làm gì.

2 The light had better/should be turned off when they are not in use.

`-` Bị động với động từ tường thuật: S(pv) + động từ tường thuật + be + Vpp + O.

3 Because of too much CO2 in the Earths atmosphere, it can lead to increasing global temperatures and air pollution, and destroy the natural world.

`-` Because of + phrase/noun + O, S + V + O: Bởi vì điều gì, ai đó làm gì.

`1` We are going to organize more green activities in our living area next month.

`-` plan + to V `=` tobe going + to V: dự định làm gì

`2` The light had better be turned off when they are not in use.

`-` Bị động với had better: S + had better + be + V3/ed + (by O)

`3` Because of too much CO2 in the Earth’s atmosphere, it can lead to increasing global temperatures and air pollution, and destroy the natural world.

`-` Because of + N/Ving, S + V: Bởi vì