In America．a friend's inviting you to a restaurant doesn't mean that he or she will pay for the meal you are told in advance．
| A．unless | B．if | C．although | D．until |
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In America．a friend's inviting you to a restaurant doesn't mean that he or she will pay for the meal you are told in advance．
| A．unless | B．if | C．although | D．until |
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