how hard work 还是what hard work 我认为what hard word it is才对

how hard work 还是what hard work 我认为what hard word it is才对 _______ hard work (what a,how ,what) ( ) hard work it is!填How还是 What还是 What a （ ）hard work it is!是填How还是What?请给出详细原因! ( ) hard work it is!选项：A.how B.how a C.what D.what a ____ hard work you have done!A.What B.How C.What a D.How a ( )hard work he is doing!A.what B.what the C.what a D.how a work hard in还是work hard at? work hard in 还是work hard on HOW Time Fies Work hard （ ）hard work they have done! A. What a B. What C. How a D. How 为何选B? what hard work it is?难道用how不可以吗,请详细说明how和what的用法区别 we work hard还是hardly? How hard the work is!句型转换 how much is hard work什么意思 为什么SUCCESS不可数却要用What s big success?还有艰难的工作是WHAT A HARD WORK 还是 HARD WORK?是固定配么? 是work hard at sth.还是work hard on sth. learning is（ ） 填a hard work还是hard work