一、根据句意及汉语提示完成句子
1．His writings ____________ (包括) some poems and novels.
2．We often go out and enjoy the beauty of ________ (大自然)．
3．People will remember Yang Jiang's ___________(成就)．
4．If you don't give up, you will ________ (成功)．
5．Many people enjoy _______________ (挑战) themselves.
