I don't clearly remember who __________ the question but I clearly remember it __________ a heated discussion.
_____in the queue for half an hour, the old man suddenly realized he had left the money in the car.
____ was known to all, John had broken his promise ___ he would stay with us for some time .
The Wenchuan earthquake in 2008 is believed ____more than 70,000 people and made thousands homeless, _____it perhaps the most destroying tsunami in history.
Berners-lee made ____possible for everyone to use the Internet.
They’ve _______ a lot of high-rise buildings recently.