PQOTD 11/30/09

For decades many scientists ________ that global warming posed a grave risk to the planet, but in the twenty-first century nearly all of them ________ that the threat is real.   a) agreed…insist   b) denied…concur   c) argued…accede   d) contended…acknowledge   e) disaffirmed…reject When you see the word “but” on a sentence completion [...]