1、

根据文章内容用括号中所给词的恰当形式填空

Children are visiting Uncle Wang’s factory. It’s a potato crisps factory. There 【1】 (be) many machines. One machine 【2】 (wash) the potatoes. Some machines 【3】 (make) crisps. Another machine 【4】 (cut) the potatoes. Uncle Wang says, “【5】 (not touch) the machines, please! They are dangerous.”