Question

We have gathered nearly 100,000 quilts,        up to half have gone to the flood-hit areas.

A．of which

B．in which

C．with which

D．for which

Answer 1

A

这题考查定语从句中“介词+which”的用法，句意是：我们收集了近100，000床被子，其中有一半已经去了洪水泛滥地区。选A。