1 . Language is one of the ________ (factor) that affect cultural exchange among countries. (所给词的适当形式填空)

2 . 使得这成为可能的原因有很多种，但主要因素之一是中国的书写体系.(factor)
There are many reasons why this has been possible, but one of the_________ _________ _________ _________the Chinese writing system.

3 . Do you know how many _______________ (因素) are contained in a useful report? (根据汉语提示单词拼写)

4 . The weather could be one of the _________ (factor) in tomorrow’s game. (所给词的适当形式填空)

5 . A child’s development is dependent on many f__________ (因素，要素). (根据中英文提示填空)

7 . There are many key f ________ determining your success, one of which is your perseverance.(根据首字母单词拼写)

9 . 体育活动是保持健康的一个重要因素。(汉译英)

10 . But one of the main ________ has been the Chinese writing system.(factor) (所给词的适当形式填空)