请问I went to the window to make sure whether something had happened.这个句子中的whether对不对?

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请问I went to the window to make sure whether something had happened.这个句子中的whether对不对?
请问I went to the window to make sure whether something had happened.这个句子中的whether对不对?

请问I went to the window to make sure whether something had happened.这个句子中的whether对不对?
在宾语从句中make sure等做肯定的谓语时意思为“是否”后面常用that 引导宾语从句,而且whether 也有“是否”的意思,意义重复.故此处whether 应改为 that

不对.用if

不对.
用if.

不对,make sure后面必须是肯定句或者否定句,不能是疑问句