— Listen! Someone is knocking at the door. Who can it be?— It _______ be Tom. He said he would visit me this evening.

题型：单选题题类：常考题难易度：容易

甘肃省武威市凉州区2016届九年级下学期英语期中测试

— Listen! Someone is knocking at the door. Who can it be?

— It _______ be Tom. He said he would visit me this evening.

A、can't B、need C、must D、mustn't

举一反三

—It_______ a hotel. But I'm not sure.

—No. It ________ be Sarah. She has gone to Italy.

—Of course. Here you are.

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