—Well, a soup, a salad, and anything ______, sir?—An apple pie, please．

      their final medical check, the astronauts boarded their spacecraft．

_____ shoulder to shoulder with a girl, I felt very embarrassed.

—Why do you hang that photograph above the fireplace?— ______ visitors of the memorial days of Long March，Sir.

____the problem of land erosion(侵蚀) getting more serious, the government is searching for a way to deal with it.