（）hard work they have done! A. What a B. What C. How a D. H

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（）hard work they have done! A. What a B. What C. How a D. How 为何选B?

work 是不可数的.
所以无冠词
在我们平时的学习和训练中,感叹句的常见题型有：陈述句改为感叹句（句型转换）、选择感叹词（选择）、感叹句互换（同义句转换）以及感叹句找错（改错）等四种.要正确解答此类题目,除知道what修饰名词、how修饰形容词和副词外,还应掌握如下一些解题技巧.
一、陈述句变为感叹句（句型转换）
这类题目可以用口诀“一断二加三换位”来解.所谓“一断”就是第一步将该陈述句在谓语动词后面断开,如下面的例句1就是在动词is后面断开.“二加”即第二步在断开处加感叹词what或how（若断开后的后半部分中心词是名词,则用what；若断开后的后半部分中心词是形容词或副词,则用how）；例句1断开后中心词是名词girl,故在断开处加上感叹词what.“三换位”即第三步把前两步所得到的两部分交换位置.例句1中的第一部分She is和第二部分what a beautiful girl交换位置,这样整理后得到感叹句：What a beautiful girl she is!
感叹句通常有what, how引导,表示赞美、惊叹、喜悦、等感情.
what修饰名词,how 修饰形容词,副词或动词,感叹句结构主要有以下几种：
掌握它的搭配,即掌握了感叹句的重点.
How +形容词+ a +名词+ 陈述语序
How+形容词或副词+ 陈述语序
What +名词+ 陈述语序
What+a+形容词+名词+ 陈述语序
What+ 形容词+复数名词+ 陈述语序
What+ 形容词+不可数名词+ 陈述语序
How clever a boy he is!
How lovely the baby is!
What noise they are making!
What a clever boy he is!
What wonderful ideas (we have)!
What cold weather it is!
感叹句的省略形式为：
What a clever boy (he is)!
祝你学习进步!
希望能够帮助到您
谢谢您!

（）hard work they have done! A. What a B. What C. How a D. H ____ hard work you have done!A.What B.How C.What a D.How a ______nice work you have done!A.How B.What a C.What D.How a ___good work they have done!A.How B.what ( ) hard work it is!选项：A.how B.how a C.what D.what a useful work they are doing!A.What B.what a C.How a D.how All-----they have done is good for us A What B which C why D _______ hard work (what a,how ,what) 1._____exciting news they have got!A.how B.how an C.what D.w _______ children they are! A What B What a C How a D How ____nice time they are having!A.What B.What a C.How D.How a _____nice car you have!A.How B.How a C.What D.What a

（ ）hard work they have done! A. What a B. What C. How a D. H

（）hard work they have done! A. What a B. What C. How a D. H