Part 2 Complete the following sentences with the underlined words. Change the form where necessary. barrier competition edge pitch differentiate commitment impress (1) Only by keeping down costs will America maintain its_________________ advantage over other countries. (2) We made a_________________ to keep working together. (3) We were very_________________ with your handling of this affair. (4) The President speaks in New York today, making another _________________for his economic program. (5) Duties and taxes are the most obvious _________________ to free trade. (6) The three days France has to prepare could give them the _________________ over England. (7) The only way to _________________ yourself in the competition is through service.