A. at B. in C. on D. for
A. in B. for C. from D. before
A. interested in B. afraid of C. busy with D. worried about
A. on;on B. in;in C. on;in D. in;on
A. in B. on C. at D. to
A. off B. from C. of D. for
A. for B. to C. with D. at
A. across;through B. through;across C. across;across D. through;through
A. because of B. instead of C. together with D. out of
A. at B. in C. on D. to