将下列句子中的汉语部分译成英语，注意使用适当的形式。
People may work                           in 100 years.  (在太空)
It's very cold outside. You'd better put on your coats to ____________________ the wind. 
(不让…….进入)
Be quiet! All the students are reading in the library                         (沉默地)
Students                                  wear uniforms on school days.  (被要求)
The old man                                selling newspapers. （谋生）