on finishing the article,I will return the book to you as soon as possible.这句话中on怎么解释?

Do you know the diffculty he had ____the work.A.on finishing B.to finishc.finishing D.have finished Art room,the,floor,second,on,is,The排列句子 You can spend twenty more minutes in finishing the work.此句中in finishing 能否换成on固定搭配spend on Work hard so as to finishing the work on time.急,英语改错 It's hard( )us( )the work on time.A.for,to finish B.for,finishing After finishing his homework ,he turned on the TV怎么意思 the finishing touching什么意思? at the finishing post是什么意思? finishing I have to catch up on finishing the work tonight,so I can't go to the movies with you finish the year 整句话是everyone is focused on finishing the year strong.讲一个公司年度工作的 where is the art room22.---is this the library?---it's on the second floor. ,The art room and the music room is on the firstfloor哪里错了? they _____(success) in finishing the work on time at last这句话用一般现在时还是一般过去时 问一个英语填空题The job isn't difficult.We are c____ of finishing it on time. On the farm Pingping picked____apples than we did.A.much more B.finish C.finishing D.finished The art room is on the first floor 是什么意思?好难啊,大家帮帮啊. on the floor first art room the is 连词成句