题目

根据句意和汉语注释，写出单词的正确形式【1】He has been _______________ (不在的；缺席的)from his desk for two weeks.【2】The physical benefits (好处) of exercise can be ______ (把...分成...) into three factors.【3】Franklin joined the children whenever his crowded (塞满的) _______________ (日历) allowed.【4】If the telephone line is _______________ (连接) to your computer, you can get online.【5】In many ways she became a _______________ (先锋，开拓者).【6】Think about the people, living and dead, who have helped _______________ (塑造) y用代数式表示a，b两数的立方和与a，b两数的平方差的商是（　　） A、（a3+b3）÷（a2+b2）B、a3+b3÷a2-b2C、a3+b3a2-b2D、a3+b3a2-b2