They were young .

Chant ：
Tall, tall.  I am tall.Short,short.  You are short.Fat,fat.   He is fat.Thin,thin.   She is thin.Naughty,naughty.It is naughty.Old,old.      They are old.Young,young.   We are young.
说反义词
Let’s say and do some actions. I say “long” and you say “short” Are you ready? Now ,together!
tall---shortfat---thinold---young long---short big---small
Clean----dirty