.Joining us in the program today __________Mr. Smith, together with his wife. Welcome to our program.
Four other students aren't in the classroom ____ Lin Tao.Where are they ?
To my surprise, he turned up in the room without ___.
He is a ___ friend of mine.
--Do you know which path __ the park? ---The one on your right.
I always do all the cleaning __ on Sunday.