The two presidents agree with each other on the whole, but much remains ______ at the following meeting.

A small plane crashed into a hillside five miles east of the city, ________ all four people on board.

 _____ lots of times, the song doesn’t sound as nice as before.

With the software product sales ____, the medium-sized IT companies are having a great time.    

To learn the piece of music quickly, you'd better hear it ___ as many times as possible.