The United States discovered in 1982 that about one-fifth of its farmland ______ topsoil a
A.is losing
B.to be lose
C.was losing
D.being lost
A.is losing
B.to be lose
C.was losing
D.being lost
第1题
(Passage 2, Lines 2-3, Para. 2)
In the 1880s the United States was a land sharply divided between the immensely wealthy and the very poor.
第2题
In which of the following years will a census be done in the United States?
A.1990
B.2000
C.2001
D.2002
第3题
The United States of America ______ fifty states.
美国由50个州组成。
第4题
In the United States, depression is a serious problem.
A.Y
B.N
C.NG
第6题
The United States government imposed the first national income tax as early as in 11
A.Y
B.N
C.NG
第7题
-- ______ the United States developed?--So ______.
A.Is, is it
B.Are, are they
C.Is, it is
D.Are they, are
第8题
United States adopted gold standard in 1867.
A.Y
B.N
C.NG