IN THE 19TH CENTURY, IT _______ TWO OR THREE MONTHS TO CROSS NORTH...

Question

18. In the 19th century, it _______ two or three months to cross North America by covered wagon.a. took  b. had taken c. had taken d. was taking

Answer

18. In the 19th century, it _______ two or three months to cross North America by covered wagon.a. took  b. had taken c. had taken d. was taking