Jack，please________ the lights to save electricity.
A. turn off B. turn on C. turn up D. turn down
The box is used to collect waste which can be ________，such as plastic bottles and paper.
A. reported B. repaired C. recycled D. reviewed
Many young people took part in trees on Tree Planting Day.
A. planting B. plants
C. to plant D. plant
Recycling is good, so don’t bottles or newspapers.
A. find out B. hand in
C. use up D. throw away
A little wine will not be to your health. Just don’t drink too much.
A. helpful B. helpless C. harmful D. harmless
—Those people know how paper can be________ wood.
—They're pretty smart!
A. made in B. made from C. made of D. made into
