Add spaces: Theyenableyourlanguagepotentialtobeaccuratelyassessed.Contactnearestlanguagecenter

Answer: They enable your language potential to be accurately assessed. Contact nearest language center

Add spaces: Theaccountsmustcontainthesameitemsascontainedintheapprovedbudget,andthebudgetfiguresmustbelistedforcomparison.

Answer: The accounts must contain the same items as contained in the approved budget, and the budget figures must be listed for comparison.

Add spaces: Manyforeignridersvisitedthetrack.

Answer:
Many foreign riders visited the track.