He makes a box to put his money in. I have no partners to practice English with. I need a candle to read books by.這些不定式后都有相應的介詞與其名詞構成邏輯動賓關系,那么按照上面的句子進行模仿,像I have no money to buy the computer with對嗎?這里的with也應該和money是介賓關系呀,表示“用錢”,可有人說這里的with是沒必要的;如果是這樣的話,那么上面三個例句中的不定式后都有相應的介詞呀。盼老師為學生解惑。非常感謝。