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

The possibility __________ pleasant smells might reduce pain has recently been suggested by new research.

Daisy ______ all the housework, she dropped herself into the sofa, sighing with relief.

         ______ on the top of the hill is an ancient temple dating back to the 17th century.

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