Trees (must/plant) carefully to ensure their growth.
Trees must be planted carefully to ensure their growth.
Organic waste (can/compost) to produce nutrient-rich soil for gardening.
Organic waste can be composted to produce nutrient-rich soil for gardening.
Plastic bottles (should/recycle) to reduce environmental pollution.
Plastic bottles should be recycled to reduce environmental pollution.
Solar panels (could/install) on rooftops to harness renewable energy.
Solar panels could be installed on rooftops to harness renewable energy.
Endangered species (ought to/protect) to preserve biodiversity.
Endangered species ought to be protected to preserve biodiversity.
Food scraps (may/feed) to backyard compost bins to minimize waste.
Food scraps may be fed to backyard compost bins to minimize waste.
Paper products (ought to/reuse) to decrease deforestation.
Paper products ought to be reused to decrease deforestation.
Clean energy sources (can/develop) to reduce reliance on fossil fuels.
Clean energy sources can be developed to reduce reliance on fossil fuels.
Wildlife habitats (should/not/disturb) to maintain ecological balance.
Wildlife habitats should not be disturbed to maintain ecological balance.
Renewable resources (might/consider) for sustainable development.
Renewable resources might be considered for sustainable development
Assignments (should/be/completed) on time to avoid late submissions.
Assignments should be completed on time to avoid late submissions.
Classroom materials (can/be/shared) among students to promote collaboration.
Classroom materials can be shared among students to promote collaboration.
Rules and regulations (must/be/followed) to maintain discipline and order.
Rules and regulations must be followed to maintain discipline and order.
Lessons (could/be/enhanced) with multimedia presentations to engage students.
Lessons could be enhanced with multimedia presentations to engage students.
