T tom3m Senior Member Joined Mar 6, 2011 Member Type English Teacher Native Language Czech Home Country Czech Republic Current Location Czech Republic Jul 27, 2012 #1 During going through the polls, I came across this sentence: [h=2]One of the main problems that ____ down progress....[/h]
During going through the polls, I came across this sentence: [h=2]One of the main problems that ____ down progress....[/h]