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

Walter offered us a lift when he was leaving the office, but our work _______, we refused his offer.

-- Come on, please give me some ideas about the project. -- sorry, with so much work _____ my mind, I almost break down.

Many strange new means of transport have been developed in our century, the strangest of _____ being perhaps the hovercraft(气垫船).

 So far, about 40 houses have fallen down under the weight of the snow , with 22people       .