The child was so ingenuous that even when she knocked the television off its stand so that it was irreparably damaged, her parents thought her to be charming.
【正确答案】 D
【答案解析】解析：ingenuous意为“坦白的，直率的”。D项naive“天真的”符合题意，其他三项intelligent“聪明的”，ingenious“机灵的”，adroit“灵巧的”都不正确。