___ is helping to break new ground in drug reserch.
a. Computers are being used more if
b. The increasing use of the computer
c. If an increase in the use of the computer
d. Computers are being used more
b. The increasing use of the computer
aCotton is one of the bmost popular cfiber used dto make clothes.
c fibers
aAlthough color is ba minor factor in soil composition, it cis excellent characteristic by which to distinguish ddifferent soil layers.
c is an excellent
The adramatic first-floor gallery bof the New Britain Museum of Americn Art cis devoted to Thomas Benton's series of five oversized dmural.
d murals
Rocks ahave forming, bwearing away and re-forming cever since the Earth dtook shape.
a have been forming
Broadway musical comedy has been called ____ of the United States to modern theater.
a. the major contribution that
b. what is the major contribution
c. the major contribution
d. to the major contribution
c. the major contribution
aDuring early nineteenth century, the building bof canals and railroads cstrengthened the state of Indiana's links dwith the eastern United States.
a During the early
Eagles are predatory birds athat have large, heavy, bhooked bills and strong, csharp claws dcalled as "talons".
d called ___
Sarah Vaugh had a voice like a aperfect instrument, and it was ban instrument that she know how cto use it with the dutmost skill.
c to use ___
Scientists have found that occasional aexposure to bright light bcan be help a person get used to cworking the dnight shift.
b can help
Usually, the more skilled an athlete ____ the more effortless the athelte's movements appear to be.
a. what is
b. that is
c. that it is
d. is
d. is
A monsoon is an aenormous cycle of air bset in motion by cdifferences temperature dover land and sea.
c. different temperatures
Maryland, aeven though a southern state, bremained cloyalty to the Union dduring the Civil War.
c loyal
Plants arequire much bless cmoist in cold weather dthan in warm weather.
c moisture
Turreted mansions adecorated with belaborate wooden ornamentation cbecame a mark of dwealthy and elegance in the United States in the late nineteenth century.
d wealth
Many tecnological innovations, such as the telephone, ____ the result of sudden bursts of inspiration in fact were preceded by many inconclusive efforts.
a. whose appearance
b. that appear to be
c. appear to be
c. are appearing
c. appear to be
All nations may ahave to make fundamental bchanges in their economic, political, and cthe technological institutions if they are dto preserve the environment.
c technological institutions
For most of atheir history, bespecially since cthe 1860's, New York City has been undergoing major ethnic population dchanges.
a its
The pitch of a amusical instrument is defined bas the relative highness or clow of the sound dit produces.
c lowness
The first awomen governor in the United States history bwas Nellie Tayloe Ros, cwho was elected governor dof Wyoming in 1925.
a woman
A quilt taht looks ordinary ____ may become a work of abstract art when it is hung on a white wall.
a. lying on a bed
b. lies on a bed
c. to be lying on a bed
d. to lie on a bed
a. lying on a bed
Massachusetts was afirst explored in the late sixteenth and bearly seventeenth ccenturies, and the first permanent dsettlement at Plymouth in 1620.
d settlement was in
Most of our ideas of awhat ancient people looked band dressed come cfrom the dworks of Renaissance artists.
a how
In laboratory experiments, an investigator aoften begins by bwork out different conditions cfor two groups dof subjects.
b working
Diamonds ahave the unique bability to allow the passage of cneither infrared and dvisible light.
c both