作业帮It's uncertain ______ the experiment is worth doing.A.if B.that C.how D.whether
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It's uncertain ______ the experiment is worth doing.A.if B.that C.how D.whether
It's uncertain ______ the experiment is worth doing.
A.if B.that C.how D.whether
It's uncertain ______ the experiment is worth doing.A.if B.that C.how D.whether
D
uncertain 是不确定,而后面却是一个陈述句,所以用whether
D,意思是不确定这个实验死否值得做。从意思上看只能选if或者whether，在这里uncertain是个否定意思的词，所以只能用whether
你好。答案是D
你的句子是：主语从句。
It(形式主语) is（谓语） uncertain（形容词做表语） WHETHER the experiment is worth doing.（从whether到doing是真正主语）
你的句子也可以改写成： WHETHER the experiment is worth doing is uncertain.
it's uncertain whether the medicine will work on this cold的反义疑问句是什么?
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