英语单选题,要原因Greater efforts to increase agricultural production must be made if food shortage___avoided.a.is to bec.will be

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英语单选题,要原因Greatereffortstoincreaseagriculturalproductionmustbemadeiffoodshortage___avoided.a.istobec.

英语单选题,要原因Greater efforts to increase agricultural production must be made if food shortage___avoided.a.is to bec.will be
英语单选题,要原因
Greater efforts to increase agricultural production must be made if food shortage___avoided.
a.is to be
c.will be

英语单选题,要原因Greater efforts to increase agricultural production must be made if food shortage___avoided.a.is to bec.will be
选C
A是(按计划)即将发生的事儿
而食物短缺有可能被避免,而不是按计划能避免

A 如果避免粮食短缺就必须做出更大的努力提高农业生产。
这儿的if引导的是条件状语从句,在条件状语从句中,常用一般现在时态表示将来。
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