Directions: There are 10 blanks in the following passages. For each blank, there are four choices marked A, B, C and D.
Passage One

Foreign exchange markets are electronic communication systems that (56) major financial centers throughout the world. Exchange rates are determined (57) supply and demand relationships, relative interest rate levels, relative (58) of inflation, political risk, and economic risk. Alternatives (59) affecting settlement of purchase and sales claims were explored (60) with the instruments available to exporters and importers for financing their international activities.