单选题
Speaker A: Sam, I'm calling to say goodbye to you, as I'm leaving this afternoon.Speaker B:______
A、
Look after yourself, and thank you for your calling.
B、
Pay attention to your schedule. Don' t be late for the train.
C、
Thank you and don' t forget to keep in touch with me.
D、
Take care and I wish you a pleasant journey.
【正确答案】
D
【答案解析】
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