問問問！在電話裡要問問題怎麼問呢？

請問你的傳真是?
May I have your fax number?

請問你的電子郵件是?
May I have your email address?

我將請他回來後儘速與您聯繫。
I will ask him to call you back as soon as he is back.

可不可以請她/他回我電話?
Could you ask her/him to call me back, please?