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Sir, you_______ be sitting in this chair! It is just for women with children and old people only.
A.can’t B.shouldn’t C.won’tD.needn’t
B
词义辨析。can’t不能;shouldn’t 不应该;won’t 不会;needn’t不必。句意:先生,你不应该坐在这把椅子上!它是为妇女儿童和老人准备的。所以选B。
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