第21题: [单项选择]It is no good ()to come now. He is busy at the moment to deal with other urgent things. A. asking him B. that you ask him C. to ask him D. if you ask him 参考答案:A 答案解析:
该题是语法结构题,考查动名词在特殊句型中的用法。要求用动名词形式的句型有It is no use/no good/no fun/a great pleasure/a waste of time,etc. +doing sth. ,如:It is no use crying over the spilt milk. 牛奶洒了,哭也无用。另外一个句型是There is no doing sth. ,如:There is no denying the fact that the、world is becoming increasingly beautiful. 不可否认的是世界正在变得越来越美丽。因此,根据题意和语法规则,选项A为最佳答案。