题目内容
18、It has been proved ______ eating vegetables in childhood helps to protect you against serious illnesses in later life.
A. if B. because C. when D. that
试题答案
18、
B
解析：情态动词shouldn’t have done的用法。
前句中有明显的时间状语the other day (几天前)，事情发生在过去。句意是“对不起，前几天我不应该对你大嚷大叫。”所以要用“shouldn’t have done”。
It has been proved______eating vegetables in childhood helps to protect you against serious illnesses in later life.
A. if B. because C. when D. that
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It has been proved _____ eating vegetables in childhood helps to protect you against serious illnesses in later life.
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A. if B. because C. when D. that
查看习题详情和答案>>