What should we do with the bread 这里的bread用cut them up 还是 cut

What should we do with the bread 这里的bread用cut them up 还是 cut Pass me a knife to cut the bread with.这里的后置定语为什么是用to do形式而不是 He gave me a knife to cut the bread with.这里的后置定语为什么要用to do形式 I want to find a knife to cut the bread with now.这里的不定式是不是 句子结构 to cut the bread with A.Cut it up B.Cut up them C.Cut them up选择填空:What shall we do The knife ------we cut bread is very sharp.A.with it B.for w Pass me a knife to cut the bread with为什么要用with 定语从句 省略This is the knife which I cut the bread with.其中的which The knife is very sharp.we often use it t cut bread.用定语从句的形式 Cut bread sentences,then answer the questions 1、The knife we cut the bread is very sharp.A．which B．with C．