to take part in the international speech competition, you must make preparations for it ahead of time.
Mr. Smith would have come to see you if it had been possible, but he __________ so busy.
--- Could you tell me what he said just now? --- Sorry, I ______ what was going on outside.
The unemployment rate in this district from 6% to 5% in the past two years.
Cathy is taking notes of the grammatical rules in class at Sunshine School,where she English now.
His silence at the meeting suggested that he _________ with you.