Greenland, _____island in the world, covers even two million square kilometers.
When I opened the door I found my son completely ______ a game.
______ it rains tomorrow, they’ll go out for an outing.
Our car ______ on our way to school, so we had to walk there.
Wang Ping found the new surroundings difficult ______.
Only if you put ______ sun there did the movements of the other planets in ______ sky make sense.