请根据所给中文提示完成下列句子。

小题1:Her grandparents bought her a pink _______(钱包). It really made her feel happy.

小题2:We should try our best to protect our__________(环境)

小题3:The______(口号）of Beijing Olympic Games is “One World, One Dream.”

小题4:His father is a _________(农夫). So he likes working in the field.

小题5:If you want to learn how to use the new software, you should go there on _____(星期三).

人口结构是指一定时期内人口按照性别、年龄、家庭、职业、文化、民族因素而构成的相互关系。( )