"Time", says the proverb, "is money". This means that every moment well-spent may bring out some money into our pockets. If our time is usefully【C1】______, it will either turn out some useful and important piece of work which will fetch its price in the market, or it will add to our experience and increase our capacities so as to enable us to earn money【C2】______the proper opportunity comes. There can thus be no doubt that time is convertible into money. 【C3】______, our life is nothing more than our time. To kill time is therefore a form. of suicide. We are shocked when we think of【C4】______, and we spare no pains, no trouble and no expense to preserve life. But we are too often【C5】______to the loss of an hour or of a day, forgetting that our life is the sum total of the days and of the hours we live. There is a third【C6】______which will also tend to warn us against loss of time. Our life is a brief【C7】______measuring some sixty or seventy years in all, but nearly one half of this has to be spent in sleep, some years have to be spent in making journeys on land and voyages by sea, some in merry making; some in【C8】______religious and social festivities. Now if all these years were to be deducted from the term over which our life extends we shall find about fifteen or twenty years at our【C9】______for active work. Whoever remembers this can never【C10】______waste a single moment of his life.

【C1】

A．adopted

B．utilized

C．applied

D．employed