QUIZ YOURSELF ON "WAS" VS. "WERE"!
Example sentences from the Web for R.R.
“RR—All of us tell everyone in our shops to shut up,” Weinberger recorded the president saying.How the Reagan White House Bungled Its Response to Iran-Contra Revelations|Malcolm Byrne|November 3, 2014|DAILY BEAST
And you definitely don't need RR to have those worries; there's quite a large volume of literature on that sort of thing.
Pararthria, pa-rr′thri-, n. disordered articulation of speech.
The hollow shaft N has two snugs to which the chains RR are attached (fig. 175).
In the words of good old Proffy Fontaine: No wan can do mo-rr-rr!Marjorie Dean College Freshman|Pauline Lester
The modified sides (rr) for convenience sake, have been called the radii; they invariably overlap the adjoining compartments.A Monograph on the Sub-class Cirripedia (Volume 2 of 2)|Charles Darwin
This is divided by partitions of peculiar form into four vessels of equal capacity, and dips into a closed water reservoir, RR'.