As a Chinese saying goes, a mountain ______ be too high or an ocean too deep. Therefore, there is no end to our self-improvement.
On the surface of the water________, which spoiled the beautiful scenery of the park.
—What about going swimming on such a hot day? —________.
---Do you mind if I smoke? ---______.
Mark Twain worked for several years as a pilot on a steamboat, taking passengers up and down the Mississippi, the great river ___flows from the north of the US near the Canadianborder.
Don’t ___a story. What I want to know is the whole truth about this matter.