She showed the visitors around the museum, the construction________had taken more than three years.
He football for many years before he was twenty. A was playing B. played C. has played D. had played
I’m so glad you’ve come here to this matter in person. (2012 湖北)
As many small cities grow rapidly, water has been polluted, which is a serious problem that people should pay more attention to.
Seeing the sun above the surface of the sea, we let out a shout of joy.
I’11 tell you I see in my new neighborhood the moment I settle down there.