11) A frequently B incidentally C deliberately D eventually
12) A soon B quickly C immediately D first
13) A some B others C several D few
14) A might B should C would D will
15) A adopting B conducting C receiving D adjusting
16) A to B at C on D about
17) A opaque B secret C sealed D hidden
18) A tackle B learn C study D manipulate
19) A in B through C with D under
20) A except B nor C or D but
1--5 CBADB
6--10BBDCC
11--15ADABA
16--20ADCCD
