A．workB．workedC．working

If oil density were greater than water’s, the oil separator _____.A.did workB.would work w

【B3】A．playedB．workedC．operatedD．affected

Will you ______ this evening？A、workB、worksC、workingD、worked

We found him（)in the laboratory.A. workB. workingC. to work

The machines are made _____ at full speed.A.workB.workingC.to workD.to be worked

62._________A. foundB. workedC. turnedD. set