问题补充：
There lots of bad information which is not for teenagers on the Internet.
A. seem to be; suitable
B. seems to have; fit
C. seem to have; fit
D. seems to be; suitable
答案：
A. seem to be; suitable
B. seems to have; fit
C. seem to have; fit
(答案→)D. seems to be; suitable
解析：
试题分析: 句意：互联网上似乎有许多不适合青少年的不良信息。seem to似乎，后接动词原形；there seem to be似乎有; which引导定语从句，修饰先行词information; suittable适合的，形容词；fit适合，动词；there be句型单复数由主语决定; 主语information信息，不可数名词；定语从句主系表结构，形容词做表语，故选D.
