第15期答案
1-10 BCBCACBCBB 11-20 BBACABCBBA 21-30 ADBADADAAD
31-40 BDCBBFGADE 41-50 CDACDBCDAC 51-60 BACBDABDBA
61. chosen 62. are designed 63. employment 64. from
65. depending 66. beneficial 67. to gain 68. actively
69. which 70. the
短文改错
foot - feet
play the tennis - play tennis
them - it
begin - began
practice - to practice
are perfect - is perfect
patient - patiently
what to - how to
late - later
in great - of great
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