we have something to leave for our chidren .这个句子为什么是 (未发生的动作

we have something to leave for our chidren 为什么这个句子不是we leave so that we have something to leave for our chidren 这里的 have an ambition is something we want to do or want to have.这个句子中 填补句子的空缺：I think we should do something to ( )our thanks to o 改写句子。 1 .We have to stay in the classroom to wait for our te 改写句子。1 . We have to stay in the classroom to wait for our te We have to leave school的意思 We look forward to,our future.类似于这个的句子 we need to smile to our friends for something terrible we ha 1.we have to leave our umbrellas o（） 2.we can't t(),r()aloud We are suppose to study hard to do something for our country something is out of our control ,so we have to command ourse