The MP3 is used for________music.
—_____ did your cousin leave his hometown?—He _______ for nearly five years.
I don’t think what he said is possible, ______?
— _____ are stamps used ______? — Sending letters.
Christmas is coming. Tom will ______ New York for the family get-together.
—He may be in the classroom, I think.—No, he _______ be in the classroom. I saw him go home a minute ago.