1.The problems involved in this operation I think are numerous.
2.I think of the problems as being numerous in this operation.
3.The problems involved in this operation are, I think, numerous.
4.Numerous problems are involved in this operation I think.

• 3.The problems involved in this operation are, I think, numerous.
  
• 10 years agoHelpfull: Yes(33) No(3)
• 4.Numerous problems are involved in this operation I think.
• 10 years agoHelpfull: Yes(23) No(9)
• its 1. the problems involved in this operation I think are numerous.
  
  Its no 3 because it gives comma after think and are which is not correct and its not the 4th one because I think cannot be written atlast and finally its not 2nd one because that doesn't makes ant sentence and changes the whole theme.
• 10 years agoHelpfull: Yes(9) No(6)
• Comma Exercise probelm. answer is 3!
• 10 years agoHelpfull: Yes(3) No(0)
• 3rd is the ans...
  
• 10 years agoHelpfull: Yes(2) No(1)
• option 2 100% Sure.
• 10 years agoHelpfull: Yes(2) No(14)
• 2. I think of the problems as being numerous in this operation.
  
• 9 years agoHelpfull: Yes(0) No(2)
• ANSWER IS 2
• 6 years agoHelpfull: Yes(0) No(2)