Question

— There’s somebody at the door. Who ______ it be? Is it the postman ?—No, it ______ be him. It

— There’s somebody at the door. Who ______ it be? Is it the postman ?—No, it ______ be him. It’s just seven o’clock. It’s too early. A．may, can’t B．will, won’t C．may, mustn’t D．must, may not

Answer 1

A

试题分析：句意：门口有个人，会是谁呢？是邮递员吗？不，他不可能是邮递员。时间才刚七点，天太早了。may表示“可能”，can表示肯定猜测，而否定猜测用can’t，won’t表示将来不，mustn’t表示禁止，绝对不能，may not表示可能不；故选A。