You can test yourself after reading the article

• My worries _____ me from sleeping well. (keep, hold)
• The police are_____ him in connection with the theft. (keeping, holding)
• She _____ back from expressing her real feelings for fear that she would be misunderstood. (kept, held)
• I think you should_____ off alcohol. (keep, hold)
_____this to yourself – I haven’t told anybody else about it. (Keep, Hold)
• Our brains can_____ a great deal of information. (keep, hold)