Question

we should rely _____ our efforts (by/with /on /of)​

Answer 1

we should rely on our efforts

Answer 2

we should rely on our efforts. “on “ is the correct answer that mainly used to show something is in a position above something else as well as touching it with something that moves in the position to the extent.

we should rely on our efforts is the correct answer as we need to have our strength and ability with the effort so that this would give you the correct answer.