Sir, you ________ be sitting in this waiting room. It is for women and children only.
| A．won't | B．needn't | C．oughtn't to | D．don't have to |
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Sir, you ________ be sitting in this waiting room. It is for women and children only.
| A．won't | B．needn't | C．oughtn't to | D．don't have to |
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