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• 27 (A) until (B) when (C)since (D) while
• 36 (A) studying (B) exploring (C) describing (D) investigating
• 45. the last two paragraphs are mainly about(A) the history of advertising (B) the benefits of adver
• 10.During the last three decades, the number of people participating in physical fitness programs___
• 19.There are some health problems that, when ____in time, can become bagger ones later on.(A)not tre
• 28 (A) move (B) travel (C)walk (D) rush
• 37 (A) need (B)shall (C) must (D) can
• 46. Below is a selection from a popular science book.If blood is red ,why are verns(静脉)blue?Actually
• 11.Half of _____surveyed in 16 countries say they go first to their closest friend to share their de
• 20.-----Excuse me, but could I trouble you for some change?------_______.Will pennies do?(A) I know
• 29 (A) housekeeper (B) leader (C)roommate (D) colleague
• 38 (A) generous (B) independent(C) similar (D) distant
• 47.Why do some old people look a little shrunken as they age?(A) Because their spine is in active us
• 12.A good listener takes part in the conversation,____ideas and raising questions to keep the talk f
• 21.Last spring, I was fortunate to be chosen to participate in an exchange study. In my application
• 30 (A) learn (B) appreciate (C) speak (D) master
• 39 (A) and (B) but (C) or (D)so
• 48. Which of the following statements about our brain is true?(A) In the long run, our brain probabl
• 13.The museum will open in the spring with an exhibition and a viewing platform____visitors can watc
• 22 (A) approved (B) knew (C) warned (D) denied
• 40 (A) instructions (B) friendships (C) facts (D)data
• 31 (A) combined (B) fitted (C)involved (D) placed
• 49. What is the main purpose of the selection?(A) To give advice on how to stay healthy.(B) To provi
• 14.It will be a big help if you go to the store and get what we need for dinner._____,I’ll set the t
• 23 (A)stubborn (B) anxious (C) universal (D) interesting