He is not easy-going, but his trust in his friends will last forever once _______. A. to be gained B...
2022-11-17 07:38:36 128次 2016届湖南省高一下学期第一次阶段性测试英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
He is not easy-going, but his trust in his friends will last forever once _______.
A. to be gained B. is gained C. being gained D. it is gained
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