31 A. Although he is poor, he is honest
In spite of N/Ving = Although + S + V
32 C. because of
Because of + N/Ving
33 D. the/0
34 B. the/the/the
35 D. The man speaking to John is my brother
36 A. written
37 B - listen to music
38 C - preparing
39 B - rang
40 C - the more
41 A finding the best ways of continuing to attract people
42 B boys from eight to fifteen years old
43 B Boys and girls from eight to fifteen
44 C destroy people's instincts
45 D less affected by video games
46 D making
47 C be understood
48 B stand
49 B will be
50 B makes