他年轻吗?不,他不年轻,他老了。
Is he ___young? No, he isn't. He's old.
你比我小。
You’re ___younger than me.
他太年轻了,还不能独自旅行。
He is too ___young to travel alone.
我们家最小的孩子刚上幼儿园。
The ___youngest in our family just started kindergarten.
当我年轻的时候,我经常踢足球。
When I was ___young, I often played football.