We're safer in a train than we should be if we （travelled）any other way.为什么句子前面没用虚拟?后面却用虚拟了?

We're safer in a train than we should be if we （travelled）any other way.为什么句子前面没用虚拟?后面却用虚拟了? We're safer in a train than we should be if we （travelled）any other way.为什么不是.（travelled）by any other way.为什么不用by? 求翻译,求讲解.We're safer in a train than we should be if we （travelled）any other way.than we should be怎么解释呢? 为什么用should be呢? We're safer in a train than we should be if we travelled any other way.than we should 这里有没有什么词是提前的?我怎么看不懂这个句子的结构？ 请分析下列句子成分及语法36.We’re safer in a train than we would be if we ______ any other way.a.traveled b.had traveled c.travel d.have traveled We're safer on a train than we would be if we（ a ）any other way.a.traveled b.had traveled c.travel为什么选a而不选c 五道英语题,望能说明原因?21. The 2010 Shanghai World Expo is intended to achieve our common goal: ________world that is safer, cleaner and healthier than ________ one we’re liv ing in.A. the; the B. a; / C. 英语翻译歌曲：square one歌手：coldplay 专辑：x&y LRC歌词 HOT打印预览 musicyou're in control is there anywhere you wanna go?you're in control is there anything you wanna know?the future's for discovering the space in which we're tra We're in Class___?___. You era safer on the street then you are in your home or in a lift. We're gaining a day. We must do everything we can_____our earth clearer and safer.A.made.B.to making.C.make.D.to make We're sorry that we did （ ）in the high jump,but we're be better next time.A.bad B.badly C.well D.good Every year thousands of people get hurt or die in road accidents.How can we make the roads safer?翻译 We’re（）to study History in the middle school.We’re（）to study History in the middle school.A.go B.going 选择正确的答案 We're in the _____(nine) grade now,so we will leave school in a few days We 're all in this together是什么意思? yes,we`re in the same