A new survey released by Yale University finds that Americans trust scientists most when ______ comes to information on climate change.
After the long journey, the three of them went back home, ___.
It is reported that the Group of Eight (G8)___ the eight richest countries in the world.
It ___ to chat online all day long. You’d better do something else.
He has finished his work. ___.
At the foot of the hill ___ surrounded by trees.