兰新高铁开通有利于( )①实现资源的优化配置 ③方便群众的生活②促进区域经济协调发展 ④促使消费者转变消费方式
18. ----- Has Mary finished writing her article ? ----- No, and it _____ before class was over.
17. I really _____ thank you enough. It’s been an amazing day.
16. The computer program is a puzzle to me. The more I think of it, the more questions I think of _____.
15. Realizing I would be late , I quickly dressed my son and _____ my bag, went to work.
14. Hard work and lack of sleep has _____ her beauty and youth in recent years.