If he had been more careful with the details, his plan would not have ________ ( 章节：3 难度：3)_做题室

单项选择题If he had been more careful with the details, his plan would not have ________ ( 章节：3 难度：3): A、fallen off; B、fallen through; C、fallen away; D、fallen over

正确答案：B
答案解析：
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