Were there a heavy snow next Sunday,we would not go skating.这句话有问题么?虚拟语气的倒装there 也可以像其他的主语一样吧

There's a heavy _____(snow).It's ____(snow). if there had were a heavy snow,i might not have gone skating. If there were a heavy snow next Sunday,we would not go skating.这里为什么不能改成were to be a heavy snow?不是表将来吗? 是there was heavy wind yesterday还是there were It was a cold spring morningin London.People walking in the street were wearing heavy clothes.The weather had beenvery bad for the past week,and now many people were ill.Today there werequite a few people in the doctor’s waiting room.There were sti we were caught in a heavy rain. It's a heavy rain and there are clouds in the sky.It's_______ there were reports of heavy snow in that area 中:reports of heavy snow”这样理解? 英语翻译There was a very bad strom last night。There was heavy rain and stong wind ,the rain came down all night .There were floods in some streets.the rain water went into people's houses.so they hadto leave them .In the country,there was water If there were a heavy snow next Sunday,we would not go skating.这句话为什么要用were不用was?was不是过去时么 我是想问a heavy snow貌似是单数 为什么不用was there is a rain,it rains___.(heavy) There was a heavy rain(同义) -There was a( )rian last night.- Yes.It rained( ).A heavy;heavily B.heavily;heavy C.heavy;heavy They weren's there now, they were there a moment ago(改错） 英语五年级填空题Our city is quite different now .There were _____bridges but there were _____ferries 50 years ago.There were ____tall_______and there weren't ______highways.Now ,there's a b ______,there h_____ ,_____subway and there _________ There seems to be a heavy rain 还是There seem to be a heavy rain?为什么？ All buses ______ because of the heavy snow,they had to to there on foot.a、had been canceledb、having been canceledc、were canceledd、having canceled 这个虚拟语气是什么时态加什么时态,If there were a heavy snow next Sunday,we would not go skating.