—Did you receive the letter the next day?
—No. Somehow, it was three weeks ________ I received it.
A．since B．before C．that D．when
Lin Shuhao has earned a good ________ at home and abroad for his excellent basketball skill and won over thousands of fans .
A．contribution B．occupation C．reputation D．civilization
Peter told us the work would be finished by next month, ________ personally I doubt very much.
A．which B．when C．that D．it
A good rest between classes ________ recover brain power to its best and make us perform better in class later.
A．must B．can C．need D．shall
The world will live happier lives if people have ________ better understanding of ________ idea of harmonious globe.
A．the; a B．/; the C．a; an D．a; the
随着科技的发展，手机拥有了越来越多的功能，人们因此在生活中越来越依赖于手机。但手机在为人们带来便捷的同时也引发了很多问题。请写一篇关于手机使用的文章，阐释手机给人们生活带来的利与弊（各两点），提出你自己对手机使用的看法,并给出合理的建议。词数100-120。
