①There ____ no hospitals 50 years ago.

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①There ____ no hospitals 50 years ago.
这空是填was呢?还是were?纠结很久,
②He and I _______(not have) an English class every morning.
这答案是don't have.我又郁闷了- - 为什么用don't?直接haven't行不行?这题麻烦详解!
③______they ill two days ago?
这答案素were,我又纠结了- - 为毛不素did?
④They ________ back in half hour.
A.will coming B.are coming
【这个句子本来很长的 = = 只是我忘了抄下来,凭着记忆打出来的,如有错误请原谅.希望能解释一下类似B的那种短语的用法 - - 我自己弄得很混 = = 】
本人语法不是很好- - 如有建议也可以在此提出来昂~

①There _were___ no hospitals 50 years ago.

there be应该与hospitals一致
②He and I __don't have_____(not have) an English class every morning.
every morning.应该用一般现在时态.have是实义动词变否定句应在前面加don't
③_were_____they ill two days ago?
they是复数.在过去时态中was与第一人称单数和第三人称单数连用
④They __are coming______ back in half hour
come用进行时态表将来
再问：能不能翻译最后那题的句子
再答： They __are coming back in half an hour 他们半小时后回来

50 years ago,There ( )no subway 找出错误,并改正There were no factories 50 years ago.There weren’t m Are there many factories in shenzhen 50 years ago no,there a ____(be) you a teacher three years ago?no,i___________ There were no tall buildings in Shanghai many years ago. dinosaurs ( )millions of years ago,but today there ( )no mor THere were no subway 5 years ago (改错) ____ there any schools in your town ten years ago There was a subway 50 years ago? There w___many people 50 years ago,e_____ There_____no hospitals in my hometown fifty years ago.是不是因为h 有一道题问：Was there a paek five years ago?我写的是：No,there were no