The sentence can be fixed by removing redundancy and making it grammatically correct. Original“Batsford Arboretum, a 55-acre garden that contains Great Britain’s largest collection of Japanese cherry trees and it is open daily to the public for most of the year.”Corrected Sentence“Batsford Arboretum, a 55-acre garden that contains Great Britain’s largest collection of Japanese cherry trees, is open daily to the public for most of the year.”The error was the extra phrase “and it is,” which caused a run-on sentence. By placing a comma and directly linking the subject and verb (“is open”), the sentence flows smoothly.