阅读下面短文，掌握其大意，从每题所给的A、B、C、D选项中，选出最佳选项.
Do right things at the proper time，or it's too late to regret for what has passed.
A grasshopper （蚱蜢）was playing the violin when he saw some ants busy1 food."Why are you working on such a beautiful day？"he asked.
"We must collect food now，"said the queen of the ants."If we don't，what will we do when 2comes？"
"Oh，winter is a long way off，"said the grasshopper."You take life much too 3."
"But you must 4today if you want to eat tomorrow，"said the little ant."You can play your violin after you've finished your work."
The grasshopper didn't want to follow her 5.He went away，singing.
Spring soon passed and the warm summer came.All day long the grasshopper played the 6.Soon summer was over.And then autumn passed，too.One morning，the grasshopper woke up and was 7to find that snow had fallen during the night."Why？Had the long winter come？"he said to himself.
The grasshopper wandered around looking for a place to keep 8but there was no such place."How9I was not to listen to the ants.While I am dying of cold and 10they are sitting in their warm nest with plenty to eat."
The grasshopper was soon frozen stiff （冻僵的）.The ants picked him up and carried him to their nest.The grasshopper learned a lesson he would never forget.
