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 The professor said he could talk on _____ interested the audience.

A. any topic    B. which topic  

C. whichever topic   D. the topic he thought it

The professor said he could talk on _____ interested the audience.

         A. any topic   B. which topic 

 C. whichever topic  D. the topic he thought it

 The professor said he could talk on _____ interested the audience.

A. any topic    B. which topic  

C. whichever topic   D. the topic he thought it

 The professor said he could talk on _____ interested the audience.

A. any topic         B. which topic  

C whichever topic   D. the topic he thought it                          

  The professor said he could talk on _____ interested the audience.

A. any topic    B. which topic 

C. whichever topic   D. the topic he thought it