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

Henry Manley was already deeply in debt. 

• A、True
  
  

• B、False
  
  

• C、Not Given
  
  

In the end, Henry Manley had a good idea to solve the problem.

• A、True
  
  

• B、False
  
  

• C、Not Given