英语句子成分的划分We often help each other when in trouble Lily and I often write e-mail to each otherwe received one another(撇s) postcards before christmasWe send each other an e-mail each weekEvery student ned to be careful with their studiesWe each hope to have free weekendsThis kind of flower is called carnation

这是好几个句子，都是简单句，没啥可难的啊

We 主语 often 时间状语 help 谓语动词 each other 宾语 when in trouble 时间状语从句
Lily and I 主语 often 时间状语 write 谓语动词 e-mail 间接宾语 to each other 直接宾语
we 主语 received 谓语动词 one another(撇s) postcards 宾语 before christmas 时间状语
We 主语 send 谓语动词 each other 间接宾语 an e-mail 直接宾语 each week 时间状语
Every student主语 ned 谓语动词to be careful with their studies
We 主语 each 同位语从句 hope to 谓语动词 have free weekends
This kind of flower 主语 is called 谓语动词 carnation 宾语