I don’t know _______ they have passed the exam.这里答案是if/whether,但是我觉得when跟how填进去也说得通啊.请问为什么不能填when跟how、?

来源：学生作业帮助网 编辑：作业帮 时间：2024/04/28 15:05:34

I don’t know _______ they have passed the exam.这里答案是if/whether,但是我觉得when跟how填进去也说得通啊.请问为什么不能填when跟how、?
I don’t know _______ they have passed the exam.
这里答案是if/whether,但是我觉得when跟how填进去也说得通啊.请问为什么不能填when跟how、?

I don’t know _______ they have passed the exam.这里答案是if/whether,但是我觉得when跟how填进去也说得通啊.请问为什么不能填when跟how、?
因为when/how必须是指当时和如何.所以后面一定要接过去时,而不是现在完成时.也就是说：When/How did they have passed the exam?

答案是对的，if意为是否得意思
整句话意为我不知道他们是否通过考试

主要是看意思，你说得对

when和how后面跟过去式
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望采纳，多谢！^_^

可以的
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(*^__^*) 祝学习进步! 谢谢！

因为whether/if放进去更好。

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