In the reading room, we found her 　　　 at a desk, with her attention _____ 　　　 on a book. 

Every morning Helen goes for a jog, with her dog ________ after her. 

My aunt sang a few old songs, my uncle _______ the piano to accompany her..

      the deadline approaching, we found ourselves      a loss about what to do.

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