--- Come on, please give me some ideas about the project.---Sorry. With so much work ____ my mind, l almost break down..

When I entered the room I found she was listening to the music with her face ___ in tears. 

______, we had to put off the tennis match. 

As is known to all, Montreal is the second largest French-speaking city in the world, _______.

Most companies’ marketing effort is focused on getting customers, with little attention _______ to keeping them.