-Have you got the airplane tickets? -No, because it's May Day ,all the tickets to Beijing______out.
My sister and I are not in different _____, but we are in the same _____.
—What are these in English?—____ .
—____dress is this?—It`s______.
—Maria, are those____ knives?—No, ____ knives are here.
—What class is he in?—He is in _____, _____.