Question

Julie was good at German, French and Russian, all of _____ she spoke fluently.

A．who

B．whom

C．which

D．that

Answer 1

C

考查定语从句。因为中间是逗号，说明后面是一个从句，而介词后面不能用that和who，故排除A、D；又因为先行词为物，故用which。