You have worked for a long time. You ____________ be very tired.

A. must B. can’t C. could D. mustn’t

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閱讀理解填詞

Someone says: “Time is m 1. ,” but I think time is e 2. more important than money. Why? Because when money is spent, we can get it back. However, when time is gone, it will never r 3. . That’s why we mustn’t waste time. It goes without saying that the t 4. is usually limited（有限的）. Even a second is very important. We should make full use of our time to do s 5. useful. But it is a pity that there are a lot of people who do not know the i 6. of time. They spent their limited time smoking, drinking and p 7. . They do not know that wasting time means wasting part of their own l 8. . In a word, we should save time. We shouldn’t l 9. today’s work for tomorrow. Remember we have n 10. time to lose.

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單詞拼寫

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What would the world be like if cars could drive themselves? Imagine seeing an empty car passing by on its way to pick up its owner, or a car full of passengers who are reading, listening to music or even sleeping, but none of them are worried about the road ahead.

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