Question

Moreover,27.6 percent of  those ____preferred reading on their mobile phones, which was 4.6 percent higher than last year.

A． surveying

B．to survey

C． surveyed

D． having surveyed

Answer 1

C

考察分词用法。Those与survey构成被动关系，表示被调查的那些人。故C正确。句意：而且在被调查的人中有百分之27.6更喜欢用手机阅读，比去年高了4.6个百分点。