(Free Sample lessons include only 4 examples of each exercise. The full version of the product has from a dozen to several dozen sentences in one Unit.)
There are two (or three) prepositions missing in each sentence. Read the sentence carefully, try and understand it. Which prepositions make sense and can be used in this context? Then check the correct answers.
1) If the Contractor is dissatisfied your work, the dispute goes arbitration.
2) The employee is currently dispute with the employer the back pay for the overtime work.
3) The parties can agree the procedure excluding an arbitrator.
4) Arbitrators are usually professionals required skills and experience the relevant commercial field.