BEFORE ..., THEY USED HORSE-DRAWN WOODEN CARTS.A. FARMERS HAVE HAD...
53. Before ..., they used horse-drawn wooden carts.
a. farmers have had tractors
b. tractors owned by farmers
c. having tractors farmers
d. farmers had tractors
--> d
53. Before ..., they used horse-drawn wooden carts.
a. farmers have had tractors
b. tractors owned by farmers
c. having tractors farmers
d. farmers had tractors
--> d