If the new airboat does what it is to be doingâ€”travel at high speeds undeterred by sandbars, crocodile-infested mudflats, or marshy hippo hauntsâ€”it could revolutionize transport on the 2,900-mile-long Congo River.
(A) If the new airboat does what it is to be doing
(B) If the new airboat does what it is supposed to do
(C) If it does as the new airboat is supposed to do
(D) Doing what it is the new airboat is supposed to do
(E) Doing what the new airboat is to be doing
Pls explain your choice
B is correct...
In my opinion the reason the writer used "does" instead of "did", is to show a future action is relation to .."revolutionize transport".
The greater the sacrifice, the greater the Victory