It worried Jim a lot____he would pass the final examinnation.a.if b.whether c.how d.that..为什么是whether?T T if和whether我总是搞不清,请老师指教,

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ItworriedJimalot____hewouldpassthefinalexaminnation.a.ifb.whetherc.howd.that..为什么是whether?TTif和wheth

It worried Jim a lot____he would pass the final examinnation.a.if b.whether c.how d.that..为什么是whether?T T if和whether我总是搞不清,请老师指教,
It worried Jim a lot____he would pass the final examinnation.a.if b.whether c.how d.that
..为什么是whether?T T if和whether我总是搞不清,请老师指教,

It worried Jim a lot____he would pass the final examinnation.a.if b.whether c.how d.that..为什么是whether?T T if和whether我总是搞不清,请老师指教,
if 引导的名词性从句只能跟在 及物动词后面做 宾语.
whether适用于几乎所有情况.
I doubt whether/if he will come.
除了这种两种通用,其他基本都用whether
所以2选1的话,选whether 都对.
希望对你有用,不懂追问.如果有帮助,请及时采纳.