We find that many children seem to lose their natural drive (动力) ____ shortly after going to school, and end up ____ the ranks of failure. [ ]

_____, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command of language is poor.

As your spoken English gets better, so ______your written English.

I’m so busy. If I ______ time, I ______ have agood rest.

Mary’s ______ sister is four years older than her.