________seems to be a strong competition in China for senior high students to enter universities does exist in other countries as well.
When he got home, he found the door _____, the window ______, the money and the necklace in the drawer _____.
_______ of my classmates could work out the maths problem because it was too difficult.
________ is where he gets all his money from.
He kept looking at her, wondering whether he _____ her somewhere.
--- I didn’t go to class last night because my car broke down. --- You _______ mine. I wasn’t using it.