资源描述
1---5 DEACB 6---10 CACCA 11---15 ABCBC 16--20 BCAAC
21---25 BABDC 26---30 CBBAD 31---35DDCBD 36---40 BACDA
41---45 CDABC 46---50 TFTFF 51---55BCADB 56---60ACCBD
61---65 FDGBC
66. singing 67.to breathe 68.harm 69.working 70.agreement
71. against the law 72. The greenhouse effect 73. ought to/ should
74. to shut off 75.long history
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