I don’t have to introduce him to you ________ you know the boy..A．until B．unless - 初中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

I don’t have to introduce him to you ________ you know the boy..

A．until

B．unless

C．since

D．but

答案

解析

当从句中有since+一般过去时，主句用现在完成时，故选C

核心考点

试题【I don’t have to introduce him to you ________ you know the boy..A．until B．unless】；主要考察你对从属连词等知识点的理解。[详细]

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