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Have you learned enough spoken English to        a conversation with the foreigners ?

       A．carry on             B．go on                 C．take on               D．keep on

Have you learned enough spoken English to ________ a conversation with the foreigners?

A．carry on          B．put on              C．take on            D．have on

Have you learned enough spoken English to _________ a conversation with the foreigners ?

A．carry on          B．go on        C．take on            D．keep on