13.A from

14.C discoveries (many -> số nhiều)

15.B technological

16.C medical

17.antibiotics

18.kidneys :thận

19.A acupuncture : châm cứu

20.B medicine

21.C heart

22.B illness

23.D o

24.C the

25.A haven’t you

26.B wouldn’t he

27.A will you

28.isn’t there

29.is it

30.didn’t he

 31.A believes to be won (coming -> tuong lai)

32.D it was reported