16．At the end of the cross-talk. audience present in the hall burst into laughter．( )A．an.t——青夏教育精英家教网——

16．At the end of the cross-talk， audience present in the hall burst into laughter．（　　）

15．Sam has been appointed manager of the engineering department to take place of George．（　　）

不填；不填

14．We can never expect ____ bluer sky unless we create _____ less polluted world．（　　）

13．The Spring Festival is special holiday for most Chinese when whole family will get together．（　　）

12．Once you click ________ button，________ email will be sent to you via your email address．（　　）

11．To me，cycling at _____ altitudeof more than 4，000meters was _____ unforgettable experience．（　　）

10．After______ dogs，the horse has had______ closest relationship with man．（　　）

9．As environment protection is becoming _______ public concern，_______ government is determined to pay more attention to the issue．（　　）

8．The early 1950s was still _____time when girl's education was always placed ______ second to boy's．（　　）

7．Having left stage for many years，she is no longer Patty Duke，a famous star who ruled the screen in the 1960s．（　　）

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