问题
选择题
The bread my wife makes is much better than ________ you can buy at a store.
A．that which
B．one that
C．that of which
D．this of which
答案
答案：A
因为替代不可数名词 (the bread) 只能用that，排除B和D；又因为先行词that (the bread) 在定语从句中作buy的宾语，用which，所以选A。