【题目】Although it was really a difficult task, he decided to try his best to _______ success.
A. challenge B. host C. approve D. achieve
在线课程【答案】D
【解析】
试题分析：句意，尽管这的确是一项很艰巨的任务，但是他决定尽他最大的努力取得成功。challenge意思是挑战；host意思是主办；approve意思是赞同；achieve意思是取得。根据句意分析，本句要表达的意思是取得成功，故选D。