问题描述：
问题解答：
Please send my regards to your family. When will you leave for Shanghai?
Greet to your family members for me，and when are you going back to Shanghai？
please greet your family for me;when will back to Shanghai?
Say hello to your family. When will you return to Shanghai?
Take my regards to your family;when will you leave for Shanghai?
send my love to your family,and what time do you get back to Shanghai?
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