单项选择题
A.that
B.of which
C.in which
D.whom
单项选择题 Opposite the square is a very tall building,()top is well above the tops of the others.
单项选择题 Some of the musical pieces for()Isadora Duncan choreographed dances were waltzes and mazurkas by Chopin.
单项选择题 No plant can possibly exist on the moon because there is no water,()is indispensable to life.