Life is unpredictable; even the poorest __become the richest.
A．shallB． mustC． needD．might
D

試題分析： 根據(jù)句子意思，后句講的是一種可能性。need 需要；must 一定；shall 表較大的可能性，如：With an early start he should be here by noon. 動(dòng)身得早，他中午就該到這里了。shall表示推斷時(shí)，語氣較肯定，通常是指非常可能的事(因?yàn)榘凳居幸欢ǖ氖聦?shí)依據(jù)或合乎常理)，而may, might, could等表示推測時(shí)，則語氣較不肯定，尤其是might, could。 因此D選項(xiàng)正確。句意為“ 人生是不可預(yù)測的；甚至最窮的也可能變得最有錢。”
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