No one can imagine the difficulty he had _______ his son to get rid of the habit of playing computer games.

No one can imagine the difficulty he had ______ his son to get rid of the habit of playing computer games.

A. persuaded　　 B. to persuade

C. persuading D. persuade

No one can imagine the difficulty he had _______ his son to get rid of the habit of playing computer games.

1. A.
   persuading
2. B.
   to persuade
3. C.
   persuaded
4. D.
   persuade

No one can imagine the difficulty he had _______ his son to get rid of the habit of playing computer games.

A. persuading              B. to persuade        C. persuaded               D. persuade

No one can imagine the difficulty he had ______ his son to get rid of the habit of playing computer games.

A. persuaded                  B. to persuade         

C. persuading                  D. persuade