虚拟语气中be动词的用法?If he fell downstairs and wasn't moving ,what would you do?其中的wasn't 为什么不是were?

虚拟语气中be动词的用法?If he fell downstairs and wasn't moving ,what would you do?其中的wasn't 为什么不是were? 关于as if 的虚拟语气as if 虚拟语气中的be 动词一定要用were 帮我看看as if后面be动词的用法区别He looks as if he were ill.He looks as if he is ill.都是他仿佛病了.还有He looks as if he were sleeping.和He looks as if he is sleeping.都是一个意思,用were的一定是虚拟语气了,但 虚拟语气as if 的用法? 虚拟语气if的三种用法 英语中的虚拟语气,关于be动词的用法.如句：If he___（were/was）a superman,he would fly to Mars.这个句中,关于单三人称,be动词应该用were还是was?求全面的解! 英语中的虚拟语气,关于be动词.如句：If he___（were/was）a superman，he would fly to Mars.这个句中，关于单三人称，be动词应该用were还是was？求全面的解！ as if的虚拟语气的用法例如as if 后面的动词一定是过去式（be 动词一定是were?) 如果是再接一个宾语从句呢?.as if he were convinced that he was the winner.我这样写对么?求证!那单看这句 ....as if he were con 求if、only if 、as if虚拟语气的用法? 英语定语从句中which的特殊用法? 虚拟语气中wish、if 的特殊用法? 虚拟过去的虚拟语气中be动词可否这样使用?If I were to am you,I would have taken you to every parts of the world. If he _____ ( be ) you ,he ____ ( will ) go for it.关于虚拟预语气的 英语语法：错综时间的虚拟语气的用法虚拟语气中，句子的主句和从句的动作发生的时间不同时，如：If he ____ my advise,he _____ much better now.A.took,would be B.had taken,would be c.had taken,would have been D.ta 请问英语中虚拟语气的用法.虚拟语气中,If从句用Can,主句是否一定要使用will或shall的呢?同样用can或其他的系动词或否?请高手指教. 关于虚拟语气中was和were的用法两个句子：1.It seemed as if the world was at an end.2.If he were here,everything would be all right.可以确定两个句子都准确无误,第一句取自教科书.所以,虚拟语气中was 和were的用 虚拟语气的用法 虚拟语气的用法 虚拟语气的用法