. — I sent him the dictionary by mail this morning .

—You ____ that; he''s coming tomorrow afternoon .

A . needn''t have done   B . didn''t have to    C . needn''t do   D . mustn''t do

A


解析:

表示“不必做某事但事實(shí)上已做了,”應(yīng)用“needn''t +不定式的完成式”

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