______your room before your guest arrives．

A.Pay for B.Take off C.Tidy up D.Try on

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Read the passage and fill in the blanks with proper words（在短文的空格內(nèi)填入適當?shù)脑~，使其內(nèi)容通順，每空格限填一詞）：

Chinese people are used to thinking the numbers 6, 8 and 9 are lucky ones, but how about 142857? This number seems common, but it is the most amazing number in the w1.. Why? Let’s look at a few facts about this number.

First, get the number multiplied by 1 to 6 and all the results are amazing b2. they are made up of the same numbers but in different orders. For example, 142857 multiplied by 2 is 285714 while 142857 multiplied by 6 is 857142. S3., if it is multiplied by 7 and we get a more amazing number 99999. Third, the number is multiplied by i4. and we can get a super large number 20408122449. However, when we a5. the front five numbers to the back six numbers, we get the same number 142857 again. Is it amazing?

In fact, people found this mysterious（神秘的）number inside the pyramids（金字塔）of Egypt. People also discovered the number is linked to seven days of a week. So you see, nature is r6. amazing. And we can learn a lot from it.

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Which of the following underlined parts is different in pronunciation from others?

A.Did you expect to win the lottery? B.He is trying to explain the rules of the game.

C.The child is full of energy and never seems tired. D.We will have to take many exams this semester.

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完成句子

1.在回家的路上，他給兒子買了兩條金魚。

__________ home，he bought two goldfish for his son.

2.在課上表演戲劇那么有趣。

It was__________to perform a play in class.

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He__________open his birthday gift．

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People can enjoy tea and plays__________.

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We will have a__________ next week.

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Like most people，we only__________ the actors and actresses in the movies.

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__________ your help，I couldn't pass the exam.

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__________ Mountain Tai was__________ that I'll never forget.

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Ms. Liu is really______________ our study.

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