We are using ___ of law ______ great effect.

-----Hello, Jessica! What happened?----- I could not hear you clearly because my mobile phone could not receive a good ________.

Without the ____ of my friends, how could my company have lived through the hard times.

They put_______on the government to lower taxes and give laid-off workers necessary health care.

I am writing to express my _______ for the safety of children travelling on school buses, especially those on high-risk and highway-speed routes.