阅读下面短文,掌握其大意,然后从方框中选出能填入文中空白处的最合适的单词,并将该单词的标号(A、B、C、D、E…)填写在答题卡对应题号的横线上。 A. usual B. graduating C. give D. shortcoming E. hardly F. schedule G. made H. Ever I. that J. organize I am Wang Kun. 71 since middle school, my sister and I have dreamed about taking a bike trip along the Mekong River. After 72 from college, we got the chan到目前为止, 是我们发现的惟一适合生物生存的场所。 是人类赖以生存的物质基础,而其中陆地面积仅占 %。