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With a lot of difficult problems ____, the man felt like a cat on hot bricks.

A. settling                     B. settled              C. to settle            D. being settled         

 With a lot of difficult problems ______. The young man felt like a cat on hot bricks.

  A. to settle        B. settling        C. settled             D. being settled

With a lot of difficult problems 　　　 , the man felt like a cat on a hot brick.

A. settling　　　 　　　　　　　 B. settled　　　　 C. to settle　　 D. being settled