Sorry, Mom. I prefer ________ orange one.
— Is it ______black one? I think I saw it somewhere.
—Yes, he studies in Beijing University.
—Sorry, Sir.
— OK. Let's go for ____________ walk in the park.
—Yeah, it is such ___________useful language that my grandma decided to buy ___________English-Chinese dictionary to learn it.
—No. It's just a plane.
—It's UFO.