我个人建议压环境保护方面的。→_→雾霾duang duang的~

一般是as far as i know,it is important to protect environment.we can never expect a bluer unless we create a less polluted world.~云云吧，建议楼主找几许万能句子，再也不怕任何题型。

我这里提供几许吧

when it comes to. .. some people think. …. however….

on the one hand,on the other hand

on the contrary

as a matter of fact

there is one topic to discuss,

especially. as a result

接着小编觉得用些in a word, as a whole之类的

举个例子吧：In a word,the whole society should pay close attention to the problem of air pollution.Only in this way can we make a cleaner sky in the future.

压不中算了，压中了题主你以后要请我吃饭哈。