42. he is going to enter the university in the summer
43. It goes without saying that I have already done everything
44. Is he going to enter the university in the summer?
Where he is going to enter in the summer?
When he is going to enter the university?
Who is going to enter the university in the summer?
What he is going to do?
45. ripe-ripper-the rippest
sad- sadder-the saddest
smart-smarter-the smartest
46. he said:" I should learn it by heart"
47. -
48. you should stay at home
you should not stay at home
Should you stay at home?
49. Present continuous
50. -
51. theirs us her