根据汉语意思完成英语句子，每空一词。
【小题1】更多的工厂会带来更多的污染吗？
Will more _________ bring more _________?
【小题2】我对老师们心存感激，因为我从他们那里学到了很多知识。
I am ________ ________ my teachers because I have learned lots of knowledge from them.
【小题3】本次会议主要是关于环境保护的重要性。
The meeting is mainly about the ___________ of environmental ___________.
【小题4】如果必须在财富和友谊中选一个，你会选什么？
If you have to choose between ________ and ________,which would you choose?
【小题5】当Michael 的妹妹出生时，他有一种被冷落的感觉。
Michael had a feeling of _________ _________ out when his sister was born.