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。

　　Many teenagers suffer from stress. Although they may worry a lot about

their 1.p       , there are some simple 2.w        to deal with them.

　　Eating a healthy diet, getting enough 3.s       and exercising regularly are all

important for young people. At school planning ahead can 4.h       .Making a list

of all the things they 5.n       to do and planning when to do can help students

organize their 6.t        . Also, students should not worry too 7.m        about

being popular. They should just be 8.t        . Finally students should make enough

time for their 9.h        .Playing sports, reading and watching 10.f       can help

them relax.

请选择适合本文的最佳标题( )。

A．“智能混凝土”的诞生

B．新的称量方法

C．混凝土的加工

D．电阻的灵敏度