英语单项选择 哪位大哥大姐帮个忙啊 小弟谢了
1.Air ____by all the livingthingsA.needsB.is needC.is needed D.needed2. -Close the door,____? -Of course. A.wouldyouB.will youC.wouldn'tyou D.might you 3.-Who'stakenaway my dictionary?-____.A.I haveB.I did C.I amD.I do 4.If you___ 5 minutes earlier ,you____him. A.should come;hadseen B.come ;wouldseeC.come;willseeD.had come;wouldhave seen