英语：打电话怎么回答？

是的，有事吗？
Yes？
你是哪位？
Who is that speaking?
需要帮忙吗？
Is there anything I can do for you?
谢谢你的来电。
Thanks for your calling.
再见。
Bye~

yes,tom speaking

yes.
this is.

Speaking.
就这样。

yes ,this is
是的 ，我是