Directions: Retype the following sentences and choose the one option-(A), (B), (C), or (D)-that correctly completes the sentences.

1.    ________ by cosmic rays.
(A)   The earth is constantly bombarded
(B)    Bombarded constantly, the earth
(C)   Bombarding the earth constantly
(D)   The earth's constant bombardment 
Answer: ___A___
2.    ________ primary colors are red, blue, and yellow. 
(A) There are three
(B) The three
(C) Three of them
(D) That the three 
Answer: ___B___
3.    ______who was elected the first woman mayor of Chicago in 1979.
(A) It was Jane Byrne
(B) Jane Byrne
(C) That Jane Byrne
(D) When Jane Byrne 
Answer: ___B___
4.    Every computer consists of a number of systems ______ together.
(A) by working
(B) work
(C) they work
(D) that work 
Answer: ___D___
5.    On the Moon, ______ air because the Moon's gravitational field is too weak to retain an atmosphere.
(A) there is no
(B) where no
(C) no
(D) is no 
Answer: ___A___
6.    The Glass Mountains of northwestern Oklahoma ______ with flecks of gypsum, which shine in the sunlight.
(A) they are covered
(B) covered them
(C) that are covered
(D) are covered 
Answer: ___D___
7.    In some cases, ______ to decide if an organism is a plant or an animal.
(A) difficult if
(B) it is difficult
(C) the difficulty
(D) is difficult 
Answer: ___B___
8.    The first American novelist to have a major impact on world literature _____.
(A) who was James Fenimore Cooper
(B) James Fenimore Cooper was
(C) it was James Fenimore Cooper
(D) was James Fenimore Cooper 
Answer: ___D___
9.    _________ important railroad tunnel in the United States was cut through the Hoosac Mountains in Massachusetts.
(A) At first
(B) It was the first
(C) The first
(D) As the first of 
Answer: ___C___
10. Generally, in the valleys and foothills of the Pacific Coast ranges.
(A) the California poppy grown
(B) the growth of the California poppy
(C) the California poppy grows
(D) growing the California poppy 
Answer: ___B___

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