circle A, B, C or D for each picture
1 he will be late for ............ if he doesn't start at one.
A the bus          B the train          C the taxi         D the lorry
2 we can ........... things like plastic bottles and cans
A reduce           B cook                C do                D reuse
3 unless we stop .............., we can't prevent floods and other natural disasters.
A polluting the air          B recycling bottles         C cutting down the trees         D planting trees
4 if we .................. water, a lot of fish will die.
A recycle          B pollute           C drink         D save