11.C) firstly
12.D) enhance
13.C) cooperation
14.B) responsibility
15.A) college
16.B) competition
17.C) each
18.A) teamwork.
19.C) socia
20.A) developing
21.B) rapidly
22.D)practice
23.C) teamwork
24.B) handle
25.A) complicated
26.A) things
27.B) future
28.B) the team sports
29.C) lot of people
30.D) friends
31.B) Doining in team
32.C) choice
33.B) developing
34.B) socia
35.A) communication
36.C) Generally
37. attend
38. attend
39. contacts
40. conductive
41. progress
42 .future
43 .career
44 . playing team sports have beneficial for cultivating teamwork
45. enhancing physique and improving
46 .team sport is useful in life