13.Willa Cather considered her novel of life in nineteenth-century Nebraska,My Antonia,---
(A)was her best work
(B)her best work
(C)her best work it was
(D)being her best work
14.First designated in 1970,Earth Day has become an annual international event concerns about environmental issues such as pollution.
(A)dedicated to raising
(B)dedicated raising
(C)dedicates to raise
(D)that dedicates to raising
15.In 1992Albert Gore,Jr.,the son of a former United States senator,became Vice President of the United States.
(A)who was the forty-fifth
(B)and the forty-fifth
(C)the forty-fifth
(E)he was the forty-fifth
16.Although Christopher Columbus failed in his original goal,the discoveries he
A B
did make were as Important than the route to Asia he expected to find.
C D
17.Martha Graham,a leading figure in modern dance,made she debut in
A B C
1920with the Denishawn School.
D
18.In the United States,the federal government is responsible to regulating the
A B
working conditions in factories.
C D
18.Jupiter is a gaseous planet with.an atmosphere composed most of
A B C
hydrogen and helium.
D
20.Throughout her career Georgia O'Keeffe paid meticulous attention to her craft;
A B
her brushes were always clean,her colors fresh and brightness.
C D
21.Hydrogen the nine most abundant element in the Earth's crust,is an odorless,
A B C
colorless,and tasteless gas.
D
22.Salamanders are frequently to be find in moist,wooded areas.
A B C D
23.Steam engines have been replaced in most cases by more economical and
A B C
efficiency devices,such as the electric motor.
D
24.Traditionally,the Fourth of July is celebrated in the United States with political
A B
speeches,picnics,and most important of all,a displayed of fireworks at night.
C D
25.The style of used in cartoon animation range from relatively realistic
A B C
representations of everyday life to the most romantic and impossible fantasy.
D
26.Ordinary beaver dams vary in length from a few feet to a hundred feel or
A B C
more than.
D
27.In the United State,presidential elections are held once every four year.
A B C D
28.Except of the freehand toe,the feet of the gull are fully webbed.
A B C D
