1.youneedtochangeinBeijing.A.atrainB.thetrainC.trainsD.train2.you'dbetterdomorningeveryday.It'sgoodtohavelotsof.A.exercise,exerciseB.exercises,exerciseC.exercise,exercisesD.exercisesexercises3.PleasehandinyourA

Question

1.you need to change ___ in Beijing.
A.a train B.the train C.trains D.train
2.you'd better do morning ___every day.It's good to have lots of___.
A.exercise,exercise B.exercises,exercise C.exercise,exercises D.exercises exercises
3.Please hand in your___
A.paper B.papers C.a paper D.the papers
4.Lots of things are made of ___,we must protect___
A.woods woods B.wood wood C.wood woods D.woods wood

Answer 1

第一道：改变北京的火车总是用复数的呀,这么多火车总不见得只改变一辆吧,这是从中文上来看.
第二道：前面every day是用复数,况且,exercise多数是和复数一起用的.但后面半句我也不知道了,我查了字典,字典上的例句也是说：you'd better take more exercise 用得也不是复数.
第三道:用排除法 首先 C,D都肯定不对物主代词后面不能用冠词的.那剩下A和B,paper 多于a连用 这里不能用a,只能是复数了.所以,是B
第四道:前半句wood解释为木材,木材是不可数名词,所以用wood;后半句解释为森林,森林所以是woods