A. manufacture B. manufacturing C. manufacturor D. manufacturer
A. construction B. construct C. constructor D. constructer
A. machine B. machiner C. machinery D. machineries
A. taking a good profit B. running a good profit C. losing a good profit D. making a good profit
A. dear B. deal C. deer D. ideal
A. essential B. important C. clear D. obvious
A. jointly B. joint C. join D.joinly
A. investor B. investment C. investing D. invest
A. know-what B. know-when C. know-how D. know-why
A. turnup B. turndown C. turnover D. turnon