These tables and desks are all made of＿＿＿＿＿．

Henry hurried to the library, only to find a notice at the gate, saying “No___________before 12:00 noon”.

There is a 20 minute parking _____ here, so we must get back to the car very quickly.

Many young people leave their hometown to seek their _______ in big cities. 

—What’s your ________?           —I like collecting stamps.