Rarely ______ located near city lights or at lower elevations.
A.
observatories are
B.
are
C.
in the observatories
D.
are observatories
2.
There are geographic, economic, and cultural reasons why ___ around the world.
A.
diets differ
B.
do diets differ
C.
are diets different
D.
to differ a diet
3.
Were ___ millions of dollars each year replenishing eroding beaches, the coastline would be changing even more rapidly.
A.
the U.S. Army Corps of Engineers not spending
B.
the U.S. Army Corps of Engineers not spend
C.
the U.S. Army Corps of Engineers does not spend
D.
not spending the U.S. Army Corps of Engineers
4.
Nowhere ____ more skewed than in the auto industry.
A.
that retail trade figures
B.
retail trade figures are
C.
are retail trade figures
D.
retail trade figures
5.
New York City’s Central Park is nearly twice as large___ second smallest country, Monaco.
A.
as
B.
is the
C.
as is
D.
as is the
6.
Potassium has a valence of positive one because it usually loses one electron when ___ with other elements.
A.
does it combine
B.
it combines
C.
in combining
D.
combination
7.
The economic background of labor legislation will not be mentioned in this course, ___ be treated.
A.
trade unionism will not
B.
nor trade unionism will
C.
nor will trade unionism
D.
neither trade unionism will
8.
___ test positive for antibiotics when tanker trucks arrive at a milk processing plant, according to federal law, the entire truckload must be discarded.
A.
Should milk
B.
If milk
C.
If milk is
D.
Milk should
9.
Located behind ___ the two lacrimal glands.
A.
each eyelid
B.
is each eyelid
C.
each eyelid are
D.
each eyelid which is
10.
Only for a short period of time ___ run at top speed.
