Put the correct preposition.
16. Mary went …………the flu yesterday and she stayed at home. 17. Boys have gone ………..the kitten and caught it. 18. Don’t use this cheese! It’s gone ………. 19. Dad is so sad. He is going …………..a difficult time. 20. The price of oil has gone …………recently.

16. Mary went down with the flu yesterday and she stayed at home.

17. Boys have gone after the kitten and caught it.

18. Don’t use this cheese! It’s gone off.

19. Dad is so sad. He is going through a difficult time.

20. The price of oil has gone up (down) recently.