Working hard is one of the ____（secret）of learning English well.这个空怎么填?

ann is one of hard- working students in our class.hard -working的用法是否正确 One of his good_________(quality) is working hard. one of his good 什么（quality）is working hard To get a high score___.A.one must work hard.B.working hard is very important He is working hard people 对working She is so hard-working.I'm sure she'll_______(success) one day. Mike is working hard.(变为感叹句)( )( )Mike is working! he is hard working.与he is hard To succeed in a difficult task,( ) A)one needs to work hard B)to work hard is needed C)you need be C.you need be a hard working person D.to work hard is what one needs The girl is working hard感叹句 is jack hard-working?咋做 She is clever,quick and hard working This student is hard---working.同意句 Mlike is working hard.改为感叹句 What is worthy of your working hard? Larry is much less hard-working,though. working hard!life is not easy! working hard is good for you为啥用working急