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

I’m told that you are going to Canada to have a three month further study. Don’t let such a good chance to improve your English _____ through your fingers.

There seemed to be no human beings in that village, and the only ______ of life was a boat tied to a tree.

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

Most members of the committee were in favour of the suggestion; only a ________ were against it.