You can't join the army because you are too young.(改为同义句)

问题描述:

You can't join the army because you are too young.(改为同义句)
You are ---- ---- ---- ---- the army.
2.It is tiring to work at the train station.(对画线部分提问)(画线tiring)
---- ---- ---- ----to work at the station?

too young to join...How is it like