请认真阅读下面短文，并根据各题所给首字母的提示，写出一个合适的英语单词完整、正确的形式，使短文通顺。
Most people love animals. We think that animals are good 小题1: f_________ of humans. But, in fact，a 1arge number of animals，especially wild ones，are in 小题2:d_________ now mainly because of humans. If we do not 小题3:t_________ action now，we will have no animals soon.
People are destroying animals’ natural habitat by cutting 小题4:d________ trees or building houses. At the same time, many of the animals’ living小题5:a_________ are becoming farmland as we have to feed a 1arger population of the world. Besides，people hunt animals for their fur or other useful things. As a result of the pollution that humans have caused, some animals cannot小题6: l_________ a normal life any more.
We must try our best to 小题7:p_________ animals right now. Remember that it is everyone’s 小题8:d_________ to do so. We should write to newspapers and magazines and 小题9:t_________ everyone about these problems. We should also immediately 小题10:d__________ something to help the endangered animals.