I don’t think it easy, even if we work hard, the South Korea and the North Korea to sit down to talk at present.
A. persuaded
B. persuade
C. to persuade
D. persuading
网友回答
A. persuaded
B. persuade
(答案→)C. to persuade
D. persuading
解析：本题考查非谓语动词。even if we work hard是插入成分，去掉后原句简化为I don't think it easy to persuade。