1) .............. the pipefitter tightening nuts? a) Am b) Is c) Are d) Do e) Does 2) ............... the electricians cutting wood? a) Am b) Is c) Are d) Do e) Does 3) .................. I assembling a metal structure. a) Am b) Is c) Are d) Do e) Does 4) .............. the safety officer writing a report? a) Am b) Is c) Are d) Do e) Does 5) ............. the safety officers developing safety measures? a) Am b) Is c) Are d) Do e) Does 6) Is the instrumentation officer ................. the industrial processes? a) monitor b) monitors c) is monitoring d) are monitoring e) monitoring 7) Are the electricians ................... the new wiring system. a) install b) installs c) are installing d) installing e) is installing

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