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）