We won't know whether it will be successful. We won't know whether there will be good .
A. ends
B. results
C. effects
D. causes
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A. ends
(答案→)B. results
C. effects
D. causes
解析： result意为“由某种活动或某种原因所产生的结果”，如：obtain(=get, attain, gain win, secure)good results（取得好结果），publish the results（公布成绩）。