单项选择题
Customer: Could you hold the door open for a moment, please Salesman: Certainly. ______
单项选择题 【B4】
单项选择题 You can call 0207 484 8925 for more information about ______.
单项选择题 Salesman: Good morning, sir. May I help you Customer: That"s OK. Salesman: Fine. Please take your time.
