He ________for three year.1.He ________for three year.A.has joined the army B.has been in the amy c.joined the army D.has joined in the army2.There is no air _____water on the moon.A,and B.or C.so D.yet（1的答案是B,为什么吖?为什么不是A

He ________for three year.1.He ________for three year.A.has joined the army B.has been in the amy c.joined the army D.has joined in the army2.There is no air _____water on the moon.A,and B.or C.so D.yet（1的答案是B,为什么吖?为什么不是A ________for Shanghai?Yes.And I'll come back in three months.可以用Did you leave ________for Shanghai?Yes.And I'll come back in three months.为什么选Are you leaving呢? He asks me ________for a moment.a.wait b.to wait c.to waited d.to waiting He jumped three metres.three metres成分? He has three baseballs.(对three提问) He has three brothers.对 three提问 Is it ________for the little boy to answer this different question?I think so .He's clever!请问是填project好,还是perfect好呢? he lives three b___from here He has three children now He has been to shanghai three times.根据 three 提问 He has three pens.(three pens) 怎么提问? I usually have ________for my supper. He peels three bananas.改为一般疑问句. It was three years before he came 翻译:他每天刷三遍牙He () () ()three() () () he has three watches 改为疑问句 He has three pencils改为一般疑问句