-I’m thinking of losing weight these days． -Oh, you be out of your mind．You’re 5
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－I’m thinking of losing weight these days．
－Oh, you ________ be out of your mind．You’re 50 kilograms at the most!
[]A．will
B．should
C．may
D．must
试题答案
答案：D
解析：本题考查情态动词。与下句“you're 50 kilograms at the most”对应可知，“你还减肥，你肯定是(must be)疯了”。