题目内容：
[词汇与结构]—The rain was ______ make our picnic impossible.
A hard enough B hard so to C so hard as to D so hard to
参考答案：
答案解析：
选择题：[词汇与结构]—The rain was ______ make our picnic impossible.A hard enough B hard so t
- 题目分类： 大学英语B级
- 题目类型：选择题
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