it was clever ______you _________ this question .A.of ; to answer B.for ; to answer C.of ; answer D.for ; answer .

it was clever ______you _________ this question .A.of ; to answer B.for ; to answer C.of ; answer D.for ; answer .
it was clever ______you _________ this question .
A.of ; to answer B.for ; to answer C.of ; answer D.for ; answer .

it was clever ______you _________ this question .A.of ; to answer B.for ; to answer C.of ; answer D.for ; answer .
A
it's +adj.of/ for sb to do sth 固定用法：用of 是指人的品质,CLEVER 聪明的,故用OF
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