【题目】Ren Xue'an, a marketing director of CCTV, says that the country’s TV producers need to what is truly valuable.
A. insist looking for B. insist on looking for
C. insist on to look for D. insist to look for
在线课程【答案】B
【解析】
考查固定搭配。句意：中央电视台的一个销售主管Ren Xue’an说国家的电视制作者要坚持寻找真正有价值的东西。动词短语insist on doing sth坚持做某事。故B项正确。