Tell me the reason _____ you are late.
The Northeast Tiger, Which is ________ to people, is now _________.
I’m _______ of the class team at school and I am also ______ of the Senior High team.
——I really like the CD you lent to me last week.——_____________.
people have always been curious ______ how living things on the earth exactly began.
After the storm, I found the world _______ and the old house ________.