题目内容
【题目】 You _______ feel all the training a waste of time, but I'm a hundred percent sure later you'll be grateful you did it.
A.should
B.need
C.shall
D.may
【答案】D
【解析】句意：你可能觉得所有的训练都是浪费时间，但是我有100%的把握你以后会感激它的。should 应该；need 需要；shall 将会；may (不确定）可能。所以选D.
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