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Keep up good state of mind even if you___________ fail plenty of times.
A.mustB.willC.canD.should
B
本题是情态动词考查。关键是理解句意:“即使你失败很多次,也得保持良好的心态。”must意为“必须”,不符题意;can通常表示能力;should表示“应该”。所以will表示对将发生的事作一推测。
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