55. ______ deep down in the earth, the dead forests
rotted away and became coal.
A.
Buried B. burying C. To
D. Being buried
Answers:
1----5
ACDCC 6----10 BBABA 11----15 AAABC 16----20 ADABA
21----25 BBBAC 26----30 DBBBBB 31----35 BDAAA 36---40 BCBBB
41----45 BCADB 46----50 BBACB 51----54 ABBB
Answers:
1----5 CCAAA 6----10 ADCAA 11----15 ABBCA
16---20 BCDDA 21---25 CCBDA 26----30 ADBDD
31---35 CCCBB 36---40 CDCDD 46----50BDACB
Answers:
1----5 BBCDD 6----10 DADBC 11----15 AACCA
16----20
DDBDA 21---25 BCBCB 26----30 DAADC
31----35
CCDDD 36---40 ACBCB 41----45 DBADC
46----50
DCBAA 51---55 DCCCA