Whether the buildings in this area should be pulled down has remained ________; people are still looking for other possible solutions.

.Mary takes great ____ in learning pop music.

He went to bed ____, and when he woke up he found he still had his shoes on.

With April 18’s railway speedup,highway and air transport will have to compete with_______service for passengers.

—What was Kelly Chan’s concert?—It __________ everyone present.It’s a pity you’ve missed it.