If it doesn’t rain within the next few weeks, the crops will have to be watered if they are______.

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问题 If it doesn’t rain within the next few weeks, the crops will have to be watered if they are______.

选项 A、to survive
B、to be survived
C、being survived
D、surviving

答案A

解析 句意:如果接下来的几周内不下雨,这些庄稼要存活下来的话,我们就要给它们浇水。本题考查动词不定式。survive没有被动语态,B、C项应排除。be to survive表示“想,打算”,即“如果要存活下来的话”。因此本题应选A项。D项与题干构成现在进行时,表示“正在存活”,不符合题干语境,故应排除。
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