A. When B. after C. As D. Since
A. it B. she C. which D. he
A. who B. that C. as D. which
A. whose B. which C. of which D. what
A. of which B. by which C. in which D. from which.
A. why B. where C. how D. /
A. who ;不填 B. 不填 ; who C. who ; who D. 不填; 不填
A. after which B. from which C. from that D. after that
A. of that B. of which C. that D. which
A. that B. where C. what D. which