MOST BABIES WILL GROW UP TO BE AS CLEVER THAN THEIR PARENTS.A. THA...

Choose the word or phrase (A, B, C, or D) that best fits each space in the following passage.

We know that there is no life on Mars. The Viking robot missions to the Red Planet proved that. The

mission was (26)_____ to one man for the most part. Percival Lowell, a rich American businessman, suggested

that Mars contained life. He was fascinated by Mars. He spent 23 years studying it. He was so (27)______

involved in the search for Martian life that he built his own laboratory. It housed a huge telescope. At 7,000 feet

(2.13km) (28)______ sea level in a dry climate, it was a perfect site to view Mars. Lowell believed that he saw a

network of lines (29)______ Mars. He also thought that the lines were built by intelligent life. There was also the

chance that water was on the planet. He drew many maps in his notebooks. His idea (30)______ the public's

attention. People soon believed that life on Mars could exist.