No regular advertiser dare produce anything that fails to stick to the _______ of his advertisement. 

China has got a good          for fighting against the flu with its careful and smooth organization.

She dreams of ___________ the ocean some day, where she can enjoy all kinds of fish and underwater plants.

She had prepared carefully for her English examination so that she could be sure of passing it on her first ________. 

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