Помогите, пожалуйста, правильно расставить предлоги.

Complete the sentences using the best answer.

We care about the environment so we have come 1)... with some practical ways of protecting it:
-Always switch 2)... the lights and the electrical appliances when you don’t need them.
-Turn 3)... the heating and put 4)... warmer clothes if you cold.
-Think carefully how you can reuse old things before you throw them 5)... .
-Try to cut 6)... packaging and paper.

1.
A B C
on up to

2.
A B C
off on at

3.
A B C
on up down

4.
A B C
up out on

5.
A B C
away into about

6.
A B C
on down down on