According to a UN report, some 844 animals and plants __________ in the last 500 years.
She may be slow but _____ she's reliable.
Thebook has been translated into thirty languages since it _____ on the market in 1973.
The results of the final examination _____ known to the students soon.
_____ to his research work, the professor heardlittle about any other things.
The boy with glasses _____ the judge with his attitude and sense of humour.