`1`. Children should do something to save energy at home.

`-` should+ V: nên làm gì

`2`. They might buy devices that run on electricity.

`-` might+ V: có thể làm gì

`3`. Many countries around the world will use solar energy.

`-` Câu chủ động ( thì TLĐ): S+ will+ V+ O+...

`4`. We must reduce fossil fuel consumption.

`-` must+ V: nên làm gì

`5`. Now people use more renewable energy than they did in the past.

`-` So sánh hơn( tính từ dài vần): N+ be/ V+ more+ adj+ than+ N1

`6`. My brother likes riding an electric motorbike to school.

`-` be+ interested+ in+ Ving `≈` like+ Ving

`7`. Despite being young, Emily knows how to use water efficiently.

`-` Cấu trúc: Mặc dù...nhưng...: Although/ Though/ Even though+ SVO, S1+ V1+ O1

`≈` In spite of/ Despite+ Noun phrase ( cụm N: SVO), S1+ V1+ O1

`8`. What types of energy sources will be used by people in the future?

`-` Câu bị động ( thì TLĐ): N+ will be+ Vpp+ [by+ O]+...?