道歉和应答
A:I'm sorry./I'm sorry to trouble you.
B:It doesn't matter. /It's n ot important. /That's nothing. / Forget it . /That's all right./ /Never mi nd/No probl em/Not to worry.
祝愿、祝贺和应答
A:Good luck! Best wishes to you. Have a nice/good time/journey. Congratulations!
B:Thank you.
A:Happy New Year! Merry Christmas!
B:The sa me to you.