题目

---What do you want to do when you are in American?---I expect ____________ English well.A. learn B. to learn C. learning D. learned 答案：【答案】B【解析】句意：——当你在美国时，你想要做什么？——我期望学好英语。expect to do sth期望做某事，故用动词不定式to learn。故选B。下列方法能检验家中饮用水为硬水的是（　　）A．肥皂水B．加活性炭C．看水的颜色D．加食盐水