China is one of_______ countries in the world.
A. larger B. largest C. the largest
Don't_______ the TV. My baby is sleeping now.
A. turn on B. turn off C. turn down
—Which do you prefer,green tea or coffee?
—________.thanks. I'd like a glass of water.
A. Either B. NeitherC. Both
My uncle is ________ engineer. He works very hard.
A. theB. aC. an
—How do you study English?
—I study English ______ talking with foreign students.
| A．by | B．in | C．at | D．on |