Im guessing. when he said "we cannot look back" he was really saying that we cant change our past only the future. so focus on looking ahead into the future instead of looking at your past doing nothing. <span />
Its either A or D. I'm pretty sure it's D :))
Answer:
Used to be considered the unknown value
Answer:
I'm certain it's A
Explanation:
The paragraph is talking about how this person likes taking their time by admiring the nature around them. The opposite phrase of that is A, because the bicyclists are not taking thier time actually looking at nature instead they are bicycling through it. That's what I think.