21. We hurried to school so that we would not be late.
22. Tom is saving up to buy a new bicycle.
23. He studies hard in order that he will pass his exam.
24. The fridge was too heavy for us to move.
25. She put on warm clothes so as not to catch cold.
26. The beach was so dirty that I decided not to stay.
27. The water was not warm enough for the children to swim in.
28. It was such the hard cake that I couldn't eat it.
29. The sea was too rough for the children to go swimming.
30. Tom is too young to drive the car.