Read the theory. Then, choose the correct item.

1 The ghost was wandering around the house at night in order/so that to frighten people.
2 Mr Otis gave the ghost some oil so that/as to stop his chains from making a noise.
3 Mr Otis suggested the ghost use the oil so as/so that not to disturb the sleeping family.
4 The twins came out of their room in order/so that they could see what was making the terrible noise.
5 The ghost found a quiet room in order/so as that he could be alone and think.​