老师你好！请指教！ 在口语中表示有礼貌地询问、请求、建议等。为使口气显得婉转、客气，多用hope,think,want,wonder等动词。可以用在一般过去时，现在进行时，过去进行时表示现在的行为，请问用在这几种时态里有什么区别? 如：Did you wish to see me now? I wondered if you could help me. I’m hoping you’ll give us some advice. I’m wondering if I may have a talk with you. I was wondering if you’d like to go out with me. I was hoping you could lend me some books.