I was just about to leave ______the telephone rang.
I _____not thank you too much for your help.
A new virus related to SARS is reported______ at least one person in China last week.
My seat is next to _____ of the famous writer so I could ask for some advice from him about writing.
--Tom is such a stupid student that he had failed in every exam.---Sorry, I won’t agree. He is ________ than stupid.
----Mum, I’m afraid I won’t do well in the coming test.----Honey, ____ more careful, ____ you will make it.