1.When will the new (规则)come into effect?
答案:regulation
2.The tool can be used in a (种类)of ways.
答案:variety
3.How long will the system keep the (证书)?
答案:certificate
4.Many students (登记) for these courses to widen skills for their jobs.
答案:register
5.He’s always very (准时的).
答案:punctual
二、用所给单词的适当形式填空
1.It was obvious that he was very (embarrass).
答案:embarrassed
2.She was fined for driving above the (regular) speed.
答案:regulation
3.Susan’s idea of freedom was to have (vary) in her lifestyle.
答案:variety
