(A) a
(B) and a
(C) since a
(D) of which a
16. A gene is a biological unit of information who directs the activity of a cell or organism during its
A B C D
lifetime.
17. The flowering of African American talent in literature, music, and art in the 1920’s in New York City
A B C
became to know as the Harlem Renaissance.
D
18. The symptoms of pneumonia, a lung infection, include high fever, chest pain, breathing difficult, and
A B C D
coughing.
19. The rapid grow of Boston during the mid-nineteenth century coincided with a large influx of
A B C
European immigrants.
D
20. In 1908 Olive Campbell started writing down folk songs by rural people in the southern Appalachian
A B C
mountains near hers home.
D
21.The thirteen stripes of the United States flag represent the original thirteen states of the Union, which
A B C
they all were once colonies of Britain. |
