单选题 The excessive hospitality______the local officials failed to leave us assured.
A. on the point of B. on the grounds of
C. on the advice of D. on the part of

【正确答案】 B

【答案解析】[解析] 四个选项中A项on the point of“正要……的时候”；B项on the grounds of“以……为根据”；C项on the advice of“依照……的建议行事”；D项on the part of“就……而言”。译文：当地政府官员过度热情反而让我们产生怀疑。