C. It keeps shaking and makes a noise.

D. It cannot turn as fast as the back one.

3. The underlined word "disgruntled" in the text probably means "_____".

A. excited B. confused

C. proud D. dissatisfied

4. Natasha wrote the letter mainly to _____.

A. demand after-sales service

B. send her congratulations

C. express thankfulness

D. make an apology

★★★☆☆

Recently, a painting of actress Elizabeth Taylor, which was drawn by American artist and filmmaker Andy Warhol, sold for US $63 million. Another simple black-and-white image of a Coca-Cola bottle sold for US $35 million. But the all-time record for a Warhol painting is $100 million for a piece titled "Eight Elvises". What's amazing is not that the pieces sold for so much, but the fact that they are not what you would call traditional art. They are "pop art", art based on simple images of things and people from advertising, movies, music and day-to-day life.

Born in the 1920s, Warhol grew up mostly separated from other