Plants ________________ on farms, can be growed, can be grown, Some plastics _________________ in recycling bins., must be putted, must be put, The environment _____________________, must be protected, can be recycled, Everything _________________ creatively., can be reused, can be thrown away, Plastic bottles ____________________ to recycling centers., may be taken, may be thrown away, Glass bottles ____________________ with soap and water., can be eaten, can be cleaned, Chemicals _______________ in special bottles., must be built, must be kept, Water __________________, must be recycled, must be conserved, Houses _____________________ using natural materials., can be grown, must be built, Future cars ______________________ to be energy efficient., may be reused, may be designed

Passive with modals

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