100.--Peter is very clever and he studies hard as well.
---No ______be always wins first in the examinations.
A.doubt B.question C.wonder
D.problem
1--5 ADCAA 6--10 DDCAC 11--15 CAACA 16--20 BCCAB
21-25 BAAAB 26-30 DBDDC 31--35 AADAA 36-40 CCAAA
41-45 BADCB 46-50 CDBDA 51-55 BAACA 56-60 CDCAB
61-65 CBACC 66-70 DBABC 71-75 CBDAA 76-80 DABCA
81-85 ABBDD 86-90 CACBA 91-95 DBCBB 96-100 DDBDC