—Why didn't Mr.Smith arrive on time for the meeting?—He must have been ________ on his way here in the traffic jam.
It's almost common for a video game nowadays to have multiple endings ________ the players' choices during gameplay.
________ copies of Mo Yan's works will be on sale after his talk at the Press Conference.
Ben received an invitation to dinner, and with his work ________, he accepted it happily.
All reference books ________, he didn't find the key to the question.
—Can you come up with another good idea? —This is the best approach I can imagine ________ the work ahead of schedule.