13. If he had eaten nutritious food, he __
(A) would have been ill.
(B) would not have been ill.
(C) will be ill.
(D) will not be ill.
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統計: A(0), B(1), C(0), D(1), E(0) #3351914
統計: A(0), B(1), C(0), D(1), E(0) #3351914