补全对话。（共5分，每小题1分）
在下面对话的空白处填上适当的话语（话语可能是句子，短语或词），使对话完整
并将答案写在答题卡的相应位置上。
A: _______________________________________?
B: I’m writing an e-mail to my best friend in Japan.
A: _________________________________?
B: Yes ,I have been there twice to visit him.
A: __________________________________as ours ?
B: No, their customs are different ours.
A: What are you supposed to do when you meet someone for the first time ?
B: _______________________________.
A: By the way , _____________________________ write to him?
B: About once a month.