【正确答案】 C

【答案解析】[解析] 画线词组的原形call on为动词词组，意为“拜访”，C项的原形visit意为“参观，拜访”；例：He wanted to visit his brother in London.他想去拜访住在伦敦的兄弟。A项的原形telephone意为“打电话”；例：I telephoned to thank her.我打电话向她道谢。B项的原形ring意为“打电话；响铃”；例：The music was so loud that it made my ears ring.音乐的声音太大了，把我的耳朵震得直响。D项的原形see意为“看见”；例：Move out of the way, please. I can"t see through you! 请借光，你挡着我的视线了!