Experiments of this kind __________ in both the U. S. and Europe well before the Second World War started.
Standing in such a good __________,we can have abetter view of the whole city.
Although a large __________ of money was used and a __________ of doctors and nurses lost their lives in fighting against SARS, we were able to win the battle in the end.
The faces of four famous American presidents on Mount Rushmore can be seen from a __________ of 60 miles.
The cold smile on her face just kept us __________.
He commanded that all the gates __________.