A. who B. whose C. which
A. in B. to C. with
A. Ihadfinished B. Ifinished C. hadIfinished
A. which B. that C. what
A. held B. washeld C. willbeheld
A. what B. whether C. when
A. causing B. cause C. caused
A. mostefficient B. moreefficient C. leastefficient
A. weearn B. canweearn C. wecanearn
A. wouldknow B. haveknown C. hadknown