A. On
B. To
C. At
D. From
A. By
B. At
C. Upon
A. In
B. By
C. On
D. To
A. Down
C. Into
D. Of
A. To
B. In
C. About
B. Than
C. With
A. Of
B. For
D. With
B. About
C. By
A. From
B. Under
C. Through
A. For
B. Against
D. On
