We took mother to all the best hospitals we could find, but all our efforts were

游客2025-01-30 1

问题 We took mother to all the best hospitals we could find, but all our efforts were in______; she passed away last month.

选项 A、valid
B、vain
C、vacant
D、vague

答案 B

解析这句话的意思是：我们带母亲去了我们能找到的所有最好的医院，但是一切努力都是徒劳的，她上个月去世了。vain意为“无益的、徒然的”；valid意为“有效的、有充分根据的”；vacant意为“空的、未被占用的”；vague意为“不清楚的、含糊的、茫然的”。根据句意，选项B为正确答案。

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