5CACBB
10BCBAC
11~15BACCA
16~20CACBC
21~25BADCB
26~30CADBC
31~35CDCDD
36~40BBCDA
41~45DDBCB
46~50CBACB
51~55BCABA
56~60ADCAD
61~65CCACD
66~70BBCAD
71nottodrive
72wherelambeginningto
73ofwhichlfeel
74where/inwhichtheycancommunicatewith
75(who/whom)youjusttalkedto/towhomyoujusttalked
76gettingup/hegetsup
77whenthehillwascoveredwith
78didlrealize(that)
79severalofwhomcamefrom
80whyhewassoupset