1、The knife we cut the bread is very sharp.A．which B．with C．with it D．with which

D 用来切面包的那把刀很锋利.The knife（with which) we cut the bread is very sharp为什么不能用which如果说只用which句子不完整。把它分成两个句子你就明白了 The knife is very sharp .We cut the bread with the knife.