young students need to spend time with their friends变一般疑问句并回答
问题描述：
young students need to spend time with their friends变一般疑问句并回答
答
Do young students need to spend time with their friends?
Yes,they do.
答
Do young students need to spend time with their friends?
Yes,they do./No,they don't.
答
need体现一般现在时的原形形式,故一般疑问句借助助动词do.
Do young students need to spend time with their friends?
回答：Yes,they do./No,they don't.