No important progress was made in UN Climate Conference in Copenhagen as of the rich countries agreed to offer large amounts of money to fight global warming.
Many people have been ill from a strange disease these days,_____ we’ve never heard of before.
—He_____ to the meeting. Have you informed him of it? —Sorry. I_____ to.
It is not enough only_____the rules of grammar if you want to learn English well.
He_____the person referred to be put in prison.
_____you I owe a thousand apologies____ having doubted your ability.