There were few people living here ___ because it was too cold.
At the beginning of class, the noise of desks __________ could be heard outside the classroom.
I smell something __________ in the kitchen. Can I call you back in a minute?
As the light turned green, I stood for a moment, not ___, and asked myself what I was going to do.
—Come on, please give me some ideas about the project.—Sorry. With so much work __________ my mind, I almost break down.
— Robert is indeed a wise man.— Oh, yes. How often I have regretted __________ his advice!