第16期答案
1-10 BCAACBBCAB 11-20 ABCACAACBC 21-30 DCDCBABBCA
31-40 CDABBEAFDG 41-50 BDACBCABDC 51-60 BDABBDBCDA
61. began 62. on 63. a 64. actively
65. survival 66. employees 67. to keep
68. practical 69. changing 70. who
短文改错
and - but
each - with each
he reached - they reached
had a fun - had fun
careful - careless
friends - friend
While - When
saves - saved
Obvious - Obviously
doing - done
[/hide]