单选题 He ______ yesterday morning, and would stay for three days.
【正确答案】 D
【答案解析】[解析] 句意:他昨天早上办理了入住手续,将会停留3天。词义辨析。check up:检查,核实;check on:核实,检查;check out:检验,结账离开;check in:(在旅馆、机场等)登记,报到。