It won`t be( )scientists can find out medicine to cure this

It won`t be( )scientists can find out medicine to cure this disease.
A.long after B.befor long
C.long befor D.long since

依泉小护士 1年前已收到3个回答举报

海脉ww投春芽

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答案C
用不着多久科学家们就会研究出治疗这种疾病的药物了
固定句型
it won't be very long before + 句子（谓语动词用一般现在时）
表示“用不了多长时间就……”“很快”
It won't be long before I return to Beijing
翻译：我很快就要回北京了

1年前

flylei009 幼苗

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1年前

lvchahaohe 幼苗

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答案选C 。属于句型：It is /was +一段时间+before 。。。意思是：。。。还要多长时间。这里是该句型的否定形式。
科学家要不了多久就能找到治愈这种疾病的药了。

1年前

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