从听力开始:
BABCD CBACB
CABCA BBAAC
ABCDD BCCAB
DCCAA BCDDB
BCAAB CBADD
ABBDB ABADD
CDBCC DDABA
71 were still waiting for
72 is twice as difficult
73 has been awarded
74 neither of whom has graduated
75 Konwing you goals
76 did they leave for
77 has been working
78 I saw her
79 had intended to work
80 would say goodbye to him