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　　Don't waste time because time 　　1　　 will never return．

　　Time passes very quickly．Some students say they do not have 　　2　　 time to do their lessons．They do not know 　　3　　 make use of their time．They waste it in going to the cinema, playing games, and 　　4　　 other useless things．Why do we go to school early in the morning? Why do most people 　　5　　 to buses instead of 　　6　　?The answer is very simple：We wish to 　　7　　 time because time is precious(宝贵的)．

　　We know that time is 　　8　　．When a person 　　9　　, his time has ended．Since life is short, we must give our studies time 　　10　　 we may be able to work for our country．

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