—May I smoke here,please?—I am afraid you .This is a non-smoking area.
____ great picture! Who painted it?
—____ interesting the storybook is! —Yes. I have read it twice.
Please connect the phone ________ the computer. A at B.into C.with D.in
Why not join an English club to practice ________?
Mr.Brown teaches ________ well ________ everybody likes his lessons.