Not only the students but also their teacher _______ about the four people.
-Who's_______ pretty girl in pink over there? -She's a friend of_______.
--____ is your father? --He is fine. Thank you.
–Where is the sofa? --______.
–What’s this? -- ____ is a key.
Tom and I ____ good friends, Tom’s grandparent ______ a teacher in our school.