单项选择题
A．game B．champion C．open D．match
28（）A．tryingB．tryC．trialD．the trial
单项选择题28（）
A．trying B．try C．trial D．the trial
Advertisement is mainly paid for by （）A．customersB．incr...
单项选择题Advertisement is mainly paid for by （）
A．customers B．increased sales C．the producer D．reduced prices
Advertisement can increase demand （）A．all the timeB．in ...
单项选择题Advertisement can increase demand （）
A．all the time B．in any circumstances C．in a growing market D．in a shrinking market
