Tom is ____________ boy now.

Daily print newspaper circulation had ______ by about 2%, dropping from 528 million in 2016 to 519 million in 2017.

her is always warning me when I go out, “Don’t get off the bus ________ it is stopping.”

John is very lazy. He falls ______ behind among thestudents.

til _____,_______the diffiultproblem.