---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

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I am David. John, Lucy, Li Na and Cindy are my good friends. Next week is John's birthday. He asks us to go to his birthday party. We want to buy some gifts for John.

John likes baseball. He has five baseballs and two baseball bats. But he doesn't have a baseball hat. I know he likes blue. I want to buy a blue baseball hat for John.

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