初中英语构词法与词意选词填空

The earlier you travel 　 　，the better you can learn the lessons traveling can teach you. （ wide ）

Yesterday Alice tried paragliding and she enjoyed 　 　 very much. （ her ）

In 1920，the 　 first three﹣color traffic light was put to use. （ world ）

Our classroom used to be on the 　 floor of that building. （ four ）

Students across China buy 2，800 million new 　 　 every year. （ textbook ）