complete each sentence with an appropriate preposition
1.You can buy reusable shoppping bags_________the check-out
2.The three Rs stand________ Reduce,Reuse and Reycle
3.These shopping bags are made_________natural materials
4.Don't throw old things_______.Try to find another use for them
5.You should turn the tap_______when you brush your teeth
6.You shouldn't wrap the food_______a plastic bag
7.Give your old clothes_________charity
8.You should swap your clothes________your friends or cousins
1. at
2. are
3.of
4.outside
5.off
6.by
7.to
8.for