it needed hard work to finish the job这里为什么用needed而不用need?

it needed hard work to finish the job这里为什么用needed而不用need? it needed hard work to finish the job这里为什么用needed而不用need? it was hardly hard work It's hard work.work不可数吗? All ______ is to work hard.(A) what is needed (B) that is needed (C) is needed (D) the needed thing it's (),so we must().A a hard work,work hard B work hard,hard work C hard work,work hard It's ______ to look after babiesA a hard work B work hard C hard work D a work hard It's______,so you must ______ to finish it.A.hard work ,hard work B.hard work ,work hard C.work hard,hard workD.work hard ,work hard（选择） _____ hard work it is 填什么 it is hard work怎么解释 Please ____(work) hard at it. Work hard,then you will keep it! It's hard work.写成感叹句 It is hard the work befor supper It takes hard work to achieve success. this is ____ ,so we must ____ on it.A.a hard work;hard work B.hard work;work hardC.hard work;hard work D.a hard work;work hard It ' s ----,we have to work hard .( ) A a hard work B ,an easy work C.hard work how hard work 还是what hard work 我认为what hard word it is才对