第17期答案
1-10 BCCABBABBB 11-20 CACBCABABC 21-30 BCADDCCBBA
31-40 DBBADFGDAE 41-50 CBBACDABCB 51-60 CDDCDAACBD
61. completely 62. as 63. surrounded
64. has planted 65. insects 66. who
67. contribution 68. were destroyed 69. a 70. more
短文改错
paid - paid a
surprises - surprise
that in - those in
crowding - crowded
we were - we
take - took
them to - them with
much - many
araly - hard
unless - if
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