单选题 Then the speaker ______ the various factors leading to the present economic crisis.
A. went for B. went after C. went into D. went on

【正确答案】 C

【答案解析】go into“探究”， “研究”；go after“追逐”， “追求”：go for“为……去”，“为……适用”；go on“继续某种行为”。本题意为：接着这位讲演者探讨了导致目前经济危机的各种因素，。显然，只有C符合题意。