She always proves _______ a true friend. A. be B. being C. to been D. to be

2 bình luận về “She always proves _______ a true friend. A. be B. being C. to been D. to be”

1. Giải đáp $D$ ( prove+ to do st)

   $@themoonstarhk$

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2. D. to be nhé
   Prove + to v

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