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Nowadays _____ of business letters are written in English．

A．two third                B．two thirds               C．two three                D．second three

 Nowadays            of business letters are written in English.？ 

A．Two-third          B．two-thirds      C．two-three           D．Two-threes 

 Nowadays            of business letters are written in English.？ 

A．Two-third          B．two-thirds      C．two-three           D．Two-threes