选择适当的代词填空（ that,those ,one,ones ,the one ,the ones ,it

选择适当的代词填空（ that,those ,one,ones ,the one ,the ones ,it
1:He has no child,and he wants to adopt ()
2:The weather in kunming is better than ()in wuhan
3:I have 50yuan,my uncle gave ()to me
4:The books he bought for me are more expensive than ()Mary gave me
5Few pleasures are better than()of swimming in summer
6 That is the present he sent to me ,()I have been expecting to get
A:one B:ones Cthose D:it