Mr.Green is able to finish the work .中的finish为什么不加s 什么情况下不用第

Mr.Green asked me to finish the work at noon.____ He is _____to do the work.He has the ______(able) to finish We have succeeded in finish the hard work 中的finish为什么要加ing ____we work extra hours everyday_____be able to finish the w I hope you____(be)able to finish the work today. Simon doesn't doubt that he is able to finish the work on ti To finish the work is not easy. mrs.green gaveus___advice on how to finish the hard work 1.The work is too diffcult for Mr.Zhu to finish in a week,he The work is too difficult for Mr Zhu to finish in a week.He Can you finish the work two days为什么不用after it needed hard work to finish the job这里为什么用needed而不用need?