一. 單項(xiàng)填空(共15小題;每小題1分,滿分15分)
( ) 21. —Ron, I congratulate you on your success.
—Thanks, but the honor _____ to all the people here.
A. is belonged B. belongs C. is belonging D. belonged
( ) 22. The parents are _____ their son who has been away from home for days.
A. in search of B. to search C. searching D. searched for