题目内容：

阅读下面材料, 在空白处填入适当的内容(仅限1个单词)或括号内单词的正确形式。

Based on recent researches. Distance-1earning is slowly proving as 1.______ (value) as the traditional campus-based form. It is a fixed truth that this form of learning is 2._____ the increase. Moreover, both students and teachers have expressed their 3.___________(happy) with these courses. The best part of distance learning courses is their flexible format. Students can continue 4.__________ (work) and study at the same time without any kind of difficulty. You will   5._________ (provide) with the facilities of a virtual(虚拟的) classroom and a virtual campus. Anyone 6.____ upgrades their professional knowledge to a new level can apply for these courses. With an online study format, the tests and notes can be 7._______ (access) with just a mouse click from your home computer. However, a student 8.________ (attend) an online course must take the time management 9._________ (serious). Every online student must keep 10.___  in mind that proper management of time and study schedule is the key towards success in this format.