George had difficulty in swimming across the lake, but he finally succeeded on h

游客2024-02-22  18

问题 George had difficulty in swimming across the lake, but he finally succeeded on his fourth______.

选项 A、attempt
B、display
C、effort
D、trial

答案 A

解析 attempt表示“尝试”,作名词时常与on连用;display意为“展示”;effort意为“努力”,不能与介词on连用:trial意为“试验,考验,审讯”。
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