1 . The bad weather is an important f__________ in the failure of the project. (根据首字母单词拼写)

2 . One main __________ (因素) is that we lack a strong will. (根据汉语提示单词拼写)

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

4 . 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.

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

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

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