The summer vacation had come round again。 I was happy that I could forget about school at least for a while。 Lest I fool around all through this summer vacation， I made a plan as to how to spend it。 

First， I thought I should go over all those things my teachers taught in the previous term so that I could have a better understanding of them。 Then I thought I should take up some forms of exercise， such as walking， running and rowing， to keep me physically strong。 

It stood to reason that with such a good plan I should make the best of my vacation time。 I did， because I lived up to what I had planned。