【正文】
pond now. before Now There wasn’t a pond here before. There is one now. before Now 你能 There is/There are /There was /There were/There wasn’t/There weren’t說一說公園以前和現(xiàn)在有什么不同 現(xiàn)在時 過去時 一個 is/ isn’t was/wasn’t 兩個或兩個以上 are/ aren’t were/weren’t There be 句型用法 There were old houses then. There are tall buildings now. ___________________then. ______________________now. old roads then. strong roads now. Fill in the blanks old houses tall buildings old roads strong roads many bikes many cars cl ssroom There were old houses then. There are tall buildings no