She showed the visitors around the museum,the construction ________ had taken more than three years.(2011·江西)
"We can't go out in this weather," said Bob,__________ out of the window.
It is widely accepted that young babies learn to do things because certain acts lead to __________.
There was such a long queue for coffee at the interval that we __________ gave up.
An invention is a new way of solving a problem, so try our best to think of many __________ and unusual ways.
This photo of mine was taken __________ stood the famous Eastern Bright Pearl in Shanghai.