From his _______look, I could see that he didn’t believe what I said.

—Excuse me, where is Johnson?—He cannot go home, as his book is lying __________on his desk. 

Greenland, ＿＿＿＿＿island in the world, covers even two million square kilometers. 

As I became older, I came to like ____ things.

Peterson used to work in a remote mountain village school, which is only _____ on foot.