单选题 He said he'd phone you ______ he got home.
A．for a while B．after a while C．at moment D．the moment

【正确答案】 D
【答案解析】[解析] for a while意为“暂时”；after a while意为“过了一会”；at moment无此搭配；the moment相当于一个连词，意为“一……就”。