reuse
recycle
reudce
passive voice
irregular verbs
100

food/can/use/ in/compost 

food can be used in compost.

100

A water bottle can always ________(use) again.

A water bottle can always be used again.

100

can our planet still _______(save)?

can our planet still be saved?

How can it be saved? what should be done? 

100

People should ___________(encourage) to use more renewable energies such as solar power and wind power to protect planet earth.

People should be encouraged to use more renewable energies such as solar power and wind power to protect planet earth.

100

Awareness _________(can/raise) by creating documentary films that focus more on risk of littering.

Awareness can be raised by creating documentary films that focus more on the risk of littering.

200

many materials can______(recycle). 

Many materials can be recycled. 

200

without recycling, our only livable planet may ________(destroy) by the growing plastic waste. 

without recycling, our only livable planet may be destroyed by the growing plastic waste.

200

In order to encourage people to recycle, they must _______ (show) how to sort out waste.

In order to encourage people to recycle, they must be shown how to sort out waste.

200

We are trying to show people that pollution can __________(deal) with in many efficient ways. 

We are trying to show people that pollution can be dealt with in many efficient ways.

200

Landfill sites __________(must/establish) away from residential areas.

Landfill sites must be establisheded away from residential areas.

300

plastic must ________(throw away). 

plastic never be thrown away. 

300

Metals objects must _________ (melt) during the recycling process.

Metals objects must be melted during the recycling process.

300

It's our responsibility to look after our planet. First, plastic should _______ (ban).

It's our responsibility to look after our planet. First, plastic should be banned.

300
How can the problem of plastic waste _________(solve)?

How can the problem of plastic waste be solved? 

300

future generations ____________(may/affect) by problems such pollution and global warming.

future generations may be affecteded by problems such pollution and global warming.

400

Our planet may _________(save) by using energy-efficient sources. 

Our planet may be saved by using energy-efficient sources. 
400
All types of waste must __________(sort) out before recycling.

All types of waste must be sorted out before recycling.

400

children at school must _________(teach) and (show) the importance of recycling.

Children at school must be taught and shown the importance of recycling.

400

Clothing banks must _______(create) for people to donate clothes they don't need or which don't fit them anymore.

Clothing banks must be created for people to donate clothes they don't need or which don't fit them anymore.

500

A broken glass can________(turn) into a beautiful piece of art. 

Broken glass can be turned into a beautiful piece of art.

500
Our use of plastic must _________(reduce) to contain the dangerous effects of plastic.  

Our use of plastic must be reduced to contain the dangerous effects of plastic. 

500

The light must ________(turn) off once we don't need it anymore.

The light must be turned off once we don't need it anymore.

500

Recycling factories __________(must/build) in all countries to reduce the ever-growing dangers of pollution. 

Recycling factories must be built in all countries to reduce the ever-growing dangers of pollution.