IN THE 19TH CENTURY, IT...TWO OR THREE MONTHS TO ACROSS NORTH AMERI...
9. In the 19
th
century, it...two or three months to across North America by covered wagonA. took B. had taken C. had been taken D. was takingth
century, it...two or three months to across North America by covered wagonA. took B. had taken C. had been taken D. was taking