1. Aerodynamics is the study of the forces ______ on an object as it moves through the atmosphere.
A. acting
B. act
C. are acting
D. acted
2. ______for their strong fiber include flax and hemp.
A. Plants are grown
B. Plants grown
C. Plants that grow
D. To grow plants
3. Elfreth's Alley in Philadelphia is the oldest residential street in the United States, with ______ from 1728.
A. houses are dated
B. the dates of the houses
C. the dating of houses
D. houses dating
4. In 1821 the city of Indianapolis, Indiana, was laid out in a design ______ after that of Washington, D.C.
A. patterned
B. was patterned
C. a pattern
D. that patterned
5. The Massachusetts State House, ___________ in 1798, was the most distinguished building in the United States at that time.
A. completing
B. which was completed
C. was completed
D. to be completed
6. The solitary scientist ______ by himse1fhas in many instances been replaced by a cooperative scientific team.
A. to make important discoveries
B. important discoveries were made
C. has made important discoveries
D. making important discoveries
7. Geometry is the branch of mathematics ______ the properties of lines, curves, shapes, and surfaces.
A. that concerned with
B. it is concerned with
C. concerned with
D. its concerns are
8. ______an average of 471 inches of rain a year, Mount Waialeale in Hawaii is the wettest spot in the world.
A. It receives
B. Receiving
C. To receive
D. Receive
9. Amber is a hard, yellowish-brown __________from the resin of pine trees that lived millions of years ago.
A. substance formed
B. to form a substance
C. substance has formed
D. forming a substance
10. ____________ relations with friends and acquaintances, playa major role in the social development of adolescents.
A. What are called peer group relations are
B. Peer group relations are
C. Peer group relations, the
D. By peer group relations, we mean
11. Ruth St. Dennis turned to Asian dances to find inspiration for her choreography.
A. It was the dancer
B. The dancer
C. That the dancer
D. The dancer was
12. The organs of taste are the ____________ which are mainly located on the tongue.
A. groups of cells, are taste buds
B. taste buds, are groups of cells
C. taste buds, these are groups of cells
D. taste buds, groups of cells
13. In 1878 Frederick W Taylor invented a concept called scientific management, ______ of obtaining as much efficiency from workers and machines as possible.
A. it is a method
B. a method which
C. a method
D. called a method
14. In physics, _________ "plasma" refers to a gas which has a nearly equal number of positively and negatively charged particles.
A. the term
B. by the term
C. is termed
D. terming
15. Jerome Kern's most famous work is Showboat, ______ most enduring musical comedies.
A. it is one of the finest,
B. one of the finest,
C. the finest one
D. as the finest of the
16. _________ a marshland that covers over 750 square miles in North Carolina and Virginia.
A. In the Great Dismal Swamp,
B. The Great Dismal Swamp, which
C. The Great Dismal Swamp,
D. The Great Dismal Swamp is
17. A group of Shakers, ___________settled around Pleasant Hill, Kentucky, in 1805.
A. members of a strict religious sect which
B. whose members of a strict religious sect
C. members of a strict religious sect,
D. were members of a strict religious sect
18. In 1791 Quebec was divided into two sections, Upper Canada and Lower Canada, ____ were ruled by elected assemblies.
A. they both
B. both of them
C. in which both
D. both of which
19. Although blood ______ in urine and stool samples, it cannot always be detected without the aid of a microscope.
A. lets residue
B. leaves residue
C. residues
D. making residue
20. Judge Francis Hopkinson is probably best known as a signer of the Declaration of Independence, but he also excelled as a poet, _______________, and an orator.
A. as a musician
B. by playing music
C. a musician
D. he played music
