Some people say life is like crossing a river; some say it is like climbing a mountain.
I think our life is much like climbing a mountain. _____ To reach our goals, we work hard to make progress day after day. Here we have a choice. We can complain about how unfair it is to climb a new mountain every year. _____
Sometimes, we fall over. ___ We can stop and complain about what progress we have lost. Or, we can stand on our feet and begin climbing that mountain again.
If we reach the goal for this year, we start from zero to reach the goal for next year. ____ Instead, we should look ahead.
Many people will waste time worrying, "Can I reach my final goal?" or is it worth doing? ___ The question is, "Can I take the next step in the right direction?"
Take one step at a time, and pay attention to tomorrow’s step today.

A. We shouldn’t spend the rest of our lives looking at where we used to be. B. Here we also have a choice. C. Each year we have a new mountain to climb. D. Or, we can just make ourselves busy. E. That is not the question.