完形填空。

　　Most students like 　　1　　 computers．It is very 　　2　　．By 　　3　　 computers, they can learn a lot and know many things about their country and the 　　4　　．Of course, they 　　5　　 learn over(通过)the radio．But they like to use computers better．Why? 　　6　　 they can hear and watch at the same time．But they can't see anything over the radio．

　　Computer helps to open students' eyes．And it can open their minds(智力), too．They know the world better．

　　Many students go online only 　　7　　 the weekend．They are always busy with their 　　8　　．But a few students 　　9　　 online every night．They go to bed very late．They can't have a good rest．That's bad 　　10　　 them．

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)