Question

Fill in the blank with the most appropriate option:

Bob is a friend of mine. I know him very well ______.

• A. The used verb form is wrong; the correct form is: knowing
• B. The used verb form is wrong; the correct form is: have known
  
• C. The used verb form is correct.
  
• D. The used verb form is wrong; the correct form is: will know
  

Answer 1

Answer: (C)

The used verb form is correct.

Option C Ian the correct answer.

Option A is incorrect because ‘knowing’ means the process of getting to know him is still going on, which is incorrect as he is his friend and he already knows him.

Option B is incorrect because ‘I have known him - this would be correct if it wasn’t followed and by Since, as in, he has known him since so long, and so he’s a good friend.

Option D is incorrect because will know is in the future tense, while the statement involves present tense only.