He told me he would do with the waste materials the next week.A. all whatB. all thatC. w

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A. all what
(答案→)B. all that
C. what all
D. that all
解析：考查定语从句，先行词是all这样的不定代词，定语从句用that修饰，在定语从句中all做do的宾语，句意：他告诉我所有的处理新材料的方法。选B。