THE TELEPHONE WAS ______ BY GRAHAM BELL.A. DISCOVERED B. CURED C....

17. - DE THI THU DAI HOC MON TIENG ANH VA DAP AN THAMKHAO
DE THI THU DAI HOC MON TIENG ANH VA DAP AN THAMKHAO
17.The telephone was ______ by Graham Bell.a. discovered b. cured c. appointed d. invented