Choose the best answer to complete each of the following sentences: 

Smoke from factories can cause air ________.

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• Though he did not develop sign language, Laurent Clerc brought it on America from France.

• Lunar eclipses happen only if the Moon is full, but they do not occur at an every full Moon.

• Early balloonists remained aloft in the air for relatively short periods.

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• The direct sources of fresh water in lakes are rain, melted snowy and ice.

• All the schools throughout of the country underwent the educational reform.

• Identify the error in each sentence: The (A) poor, woman (B) with her two children (C) were seen (D) begging in a street corner.

• To his surprise, the engine started by the very first try.

• In winter it is important for farmers to provide food and warm for their animals

• I’ll make some sandwiches before I’ll leave for the office in the morning.

• Choose the best word or phrase to complete the following sentences:

  If you come to the theatre late, you have to wait until the _________ to get in.

• So when Whitman returned to the Pacific, over thousand settlers went with him.

• Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

  ________ he is so busy with his work, he always finds time to go to the concert every week.

• The Unita Mountains of north-eastern Utah are the only range of mountains in North America that runs from East and West for its entire length .

• Despite of rain or snow, there are always more than fifty thousand fans at the OSU football games.

• Choose the best answer:
  If you come to the theatre late, you have to wait until the ______ to get in.

• Choose the best answer:
  She worked hard ______she passed the exam.

• Identify the one underlined word or phrase A, B, C, or D that must be changed for the sentence to be correct:

  Tom watches usually television in the evening. 

   

• To save the California condor from extinction, a group of federal, local, and privately organizations initiated a rescue program.

• She sued him _____ damages he did to her cars.

• My sister and I do not study at the same school. That is the reason for why my father has bought two bikes