The Internet has bee increasingly popular, us to see as well as to hear all kinds of programmes.
A. to allow
B. allowing
C. allowed
D. having allowed
网友回答
A. to allow
(答案→)B. allowing
C. allowed
D. having allowed
解析：考查非谓语动词。Internet与allow是主谓关系，使用现在分词表示伴随状况。句意：互联网正在逐渐流行起来，(它)允许我们边看边听各种各样的节目。故选B。