Let's learn to use the problem we are facing ______ a stepping-stone to future success．
A. to B. for C. as D. by
His novels sell best and have made him famous, but before that no one could have imagined how great a role he ______ in the literary world．
A. had played B. has played C. is playing D. was to play
When dealing with students, teachers are supposed to adopt ______ and caring approaches, as they are unique young individuals of different personalities.
A. abstract B. efficient C. flexible D. effective
As for diet, Michael Jackson chooses vegetables and fruit in ______ to any kind of meat.
A. comparison B. preference C. control D. advantage
In April, thousands of holidaymakers remained ______ abroad due to the volcanic ash cloud.
A. sticking B. to be stuck C. stuck D. to have stuck
His remark was considered to be quite ______, because it deepened the gap between two parties and caused more conflicts.
A. out of place B. out of mind C. out of question D. out of order
