Back from his two-year service in the army, Mr. Lee was very happy to see his father ________ good care of at home.
A.taken B.taking C.take D.be taken
________ birds use their feathers for flight, some of their feathers are for other purposes.
A.Once B.If C.Although D.Because
There is no greater pleasure than lying on my back in the middle of the grassland, at the star.
A.stare B.staring C.stared D.having stared
I before I came to the new school, for my classmates here are very friendly to me.
A.mightn’t worry B.mightn’t have worried
C.needn’t worry D.needn’t have worried
A huge was lifted from my shoulders when I told my parents about my problems.
A.burden B.risk C.hole D.disaster
假定你是李华，你的外国朋友Chris在电视里看到中国春运，发邮件向你询问有关情况。请你回复一封邮件，内容包括：
1.原因及时间；
2. 30多亿人次流动；
3.交通方式。
注意：1. 词数120左右；
2. 可以适当增加细节，以使行文连贯。
参考词汇：春运Spring Festival travel season
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