Foreign trade, the ____ of goods between nations, takes place for many reasons.

Although he is over 65, Mr Smith has never been tired. He’s a man full of ___.

I have a firm ____in the power of communication, which will smooth away misunderstanding.

- She got into a(n) _____when she thought she'd forgotten doing homework. 

The company turned a deaf ear to the workers’ _____ about their pay and working conditions.