A.\(14\)B.\(7\)C.\(21\)D.\(10\)
A.completesB.will completeC.are completingD.will have completed
A.am working / will retireB.am going to work / am retiringC.work / am going to retireD.have been working / retire
A.will get / has been waitingB.got / was waitingC.got / had been waitingD.get / will wait
A.is usedB.it is usedC.usedD.being used
A.is inventedB.is inventingC.inventedD.was invented
A.are destroyingB.destroyedC.were destroyingD.were destroyed
A.to be generally knownB.is generally knownC.generally knownD.is generally knowing
A.often be consideredB.can often considerC.can often consideredD.can often be considered
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