根据句意和中文提示,写单词

根据句意和中文提示,写单词1.There are four ( )(大洋) in the world,and the Pacific is one of them.2.The water in the w_____ is very clean ,it can be drunk.3.At last my favorite singer_______(出现) in a cool skirt.4.It's my t_____ to clean the classroom today.5.To protect the _____ (祖国) is everyone's duty.6.There are more than two thousand ________(村民) in this village.