英语选择为什么there is much to do before the photo is finished and

英语选择为什么there is much to do before the photo is finished and There is not much to do 为什么要用much There is much homework to do.为什么不用被动语态 There is always much to do on the But always there is so much to do On the farm为什么用on there is nothing much to do in the evening but read 用英语 英语书上原句：There is nothing much to do .请问：much不是修饰不可数吗?为什么? there is so much to do here! There is much to see and There is()work for me to do,and it is ()hard.A.too much,too 动词不定式被动问题Much of the work is ____ before sunset.A. finished There is not much to do there.同义句转换