单选题 He inquired whether it was possible to leave his suitcase at the railway station.
A. insisted B. suggested
C. asked D. called

【正确答案】 C
【答案解析】[解析] inquire与ask同义，意为“询问，问，打听。”insist“坚持或坚决要求(某事物)”；suggest“提议，建议”；call“呼喊，叫”。