27 The man whose son learns with me is my teachet
28 The hotel which is near the beach is the most expensive
29 The vase of flower which is on the window is the one that I like the most
30 The man who I don't like is angry
31 Jane , whose father is the president of the company, has received a promotion 

27, the man whose son learns with me,is my teacher
28,no one the hotel near the beach is more expensive the hotel does
30, the man who i don't like is angry
29. i like the vase of flower most on the window