A. what B. who C. if D. which
A. which B. as C. that D. like
A. so that B. in case C. nevertheless D. although
A. to repair, repaired B. to be repaired, repairing C. being repaired, repaired D. repairing, repaired
A. superior to B. superior than C. more superior to D. more superior than
A. in what B. for what C. in which D. at which
A. as B. than C. that D. but
A. difficulties in finding B. difficulty in finding C. difficulty to find D. difficulties to find
A. If B. Though C. When D. Lest
A. discarded B. disposed C. displayed D. discharged
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