2. 从业资格
  3. _______ your valuable help, we couldn’t

_______ your valuable help, we couldn’t

题库2022-08-02  29
问题 _______ your valuable help, we couldn’t have finished the experiment ahead of time.A.If it were not forB.Had it not been forC.Were it not forD.If it has not been for
选项 A.If it were not for
B.Had it not been for
C.Were it not for
D.If it has not been for
答案 B
解析 本题考查虚拟语气和倒装

B选项，由主句谓语可知本题是与过去事实相反的虚拟条件句，条件从句谓语用“had+过去分词”，如果省略if，从句要用倒装语序，即把had移到主语前面。综上，B选项正确。

A选项，与题意不符，故排除。

C选项，与题意不符，故排除。

D选项，与题意不符，故排除。

故正确答案为B 项。
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中学英语学科知识与教学能力

教师资格笔试

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