Clause+ to / in order to / so as to+ V1: cụm từ chỉ mục đích 

Clause + so that / in order that + clause: mệnh đề chỉ mục đích 

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14. He climbed the tree so that he could get a better view.

15. You should get up early to have time to review your lesson.

16. We should do morning exercises regularly so that we can improve our health.

17. She put on warm clothes so as not to catch cold.

18. He hurried to the station so that he wouldn't miss the train.

19. Mary went to the library so as to borrow some books 

20. John gets up early not to be late for class.

21. We hurried to school so that we wouldn't be late.

22. Tom is saving up to buy a new bicycle.

23. He studies hard so that he can pass his exam.

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