一个句子：But now there are more reasons than ever to reach for a slice还有ever不是介词吗?怎么后面还跟不定时?这是怎么个用法?

there was a baby before.But now there is a 一个句子：But now there are more reasons than ever to reach for a slice还有ever不是介词吗?怎么后面还跟不定时?这是怎么个用法? 新概念2的18课句子I had left it on a chair beside the door and now it wasn’t there.为什么连词用and不用but? Last year there a grassland here ,but now there many trees There were a lot of trees here,but now there aren't any改为同意句 There used to be only school here,but now there are a few school. There was a school in this village,but now there isn't（改为同义句） It () there yesterday,but it () there now.A.was;is B.wasnot;is C.is;wasnot it_(be)there just now ,but it isn't there now.your cd walkman_(be)on the ground just now.where's the camera?it_(is)there a moment ago.where_(be) THE diary now?it__(IS)there just now. There was a shool in this place but now thereThere was a shool in this place but now there isn't.同义句转换 一、把下列句子补充完整.Our city is very modern and beautiful now.But fifty years ago,there ( )a highway.There was only a small( ).There was a river at that time and there was a ( ) over the river.There ( ) any factories.Were there any ( No 改错 Mrs.Williams is a baker there years ago,but now he was a hairdresser. _____ the box there is nothing but a piece of paper?还有，请帮忙做下此题：Tom didn't help mother with housework,but he does now.(合并句子）Tom_____ _____ _____ _____ mother with housework.） there were _____television before,but there are many now.填什么A .no B.not a C 不填 there were a lot of birds here in the p----,but now there are only a few ,补全单词 but now i think every thing seems lost.there is a generationgap between us. 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 was a cinema here in the past ,but there isn't now翻译和同义句