Anna is often heard ______songs in her room.
Mary, remember to bring the CD I want next time, _______?
As I was worried about the safety of my son in the heavy storm, my attention began to _______ off my work.
_________in the IT company, David decided to say goodbye and start his own business.
I think it’ll take at least another two months _______ the shopping center is completed.
A child who lives in an uninteresting environment will develop less intelligence than ______ who lives in a rich and changing environment.