__________ it is true that a student`s most important goal is to do well in his or her studies,it doesn`t need to be the only goal.
31. So serious ________ that even the best doctors failed to save his life.
30. Mr. Keller ______ forty cigarettes a day until he gave it up.
29. --- Do you know that man? --- Not really, just a nodding _______.
28. Please remember___wins you respect is not your background but your knowledge and virtues.
27. I find it astonishing that she _____ treat you like this in public.