George Strong was the best engineer in Henry Manley's company.

• A、True
  
  

• B、False
  
  

• C、Not Given
  
  

Task 1

16. Paragraph     ①     

17. Paragraph     ②     

18. Paragraph     ③     

19. Paragraph     ④     

20. Paragraph     ⑤     

A. Lightening Causes Puzzles to People

B. Types of Lightning

C. Causes of Lightning

D. Differences Between Thunder and Thunderstorm

E. Frequencies of Thunderstorms Occurring in the World and the U. S.

F. Shock Waves as Thunder

Men like George Strong are important to the future of the company.

• A、True
  
  

• B、False
  
  

• C、Not Given