Our teachers often make their classes _______ .

下列句子中加点词的用法与其他三项不同的一项是

Mr. Smith will pay a visit to Beijing this autumn, ________ we will enjoy the Olympic Games in 2008.

on’t know whether I should goabroadornot, Mum— I leave _______ to your own judgmentwhether you should do it

I worry about ______ enough time andenergy to finish that job.—Don’t worry about it. I’ll help you!