An old friend of Mr. Broker is not aware of his current changes, how can he get in touch with Mr. Broker? A.By sending him an e-mail B.By sending a letter to his office C.By faxing him D.By dropping by his office
A.By B.By C.By D.By
【参考答案】
A 解析:通告最后提到:“His e-mail address remains unchanged”,所以老朋友......