——Fifty dollars for such a T-shirt! You _______ be joking!——I'm serious．It's made of silk.

题型：单选题题类：模拟题难易度：普通

——Fifty dollars for such a T-shirt! You _______ be joking!
——I'm serious．It's made of silk.

A、must B、need C、may D、can

举一反三

— It ___________ be him. He has gone to America.

—Sorry, you return it today.

—Sorry, I ________. I ________ study for the English test.

—It___________ be Kitty's. She is looking for her coat.

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