(do) please. 或Of course. (you may/can). 或That’s OK/all right. 如果不同意,可以说I’m sorry you can’t. 或I’m really sorry, but I have to use it today. 要避免说No, you can’t. 这样显得很不礼貌。否定
(1)表示能力,意思是:能,会。Could you speak English then? 那时你能讲英语吗?He said he couldn't follow me. 他说他跟不上我。(2)表示可能性,意思是:可能。That big cinema can seats 2,000 people. 那家大电影院能坐2,000人。He said he couldn't come. 他说他不能来。(3)提出请求、疑问或...