Have you seen _____ empty box?— Do you mean _____ box you showed to me yesterday? I put it in your schoolbag.
I am a teacher and I _____ in this school for 5 years.
He likes to play ______ violin and I listen to _______ music.
When Mary stood up to answer the question , she was _____at first but soon relaxed.
Peter forgot to tell us when______.[ ]