13. Work on superconductivity, ---, has attracted a relatively small number of researchers.

(A) is a very specialized field

(B) which a very specialized field is

(C) a very specialized field

(D) a field very specialized which

14. ---, the fist Amendment to the Constitution provided for freedom of speech, press and assembly.

(A) In 1791 they drafted

(B) The draft in 1791

(C) In 1791 was drafted

(D) Drafted in 1791

15. When --- in desert climates, the Navajo construct lean-tos as temporary summer shelters.

(A) travel

(B) to travel

(C) traveling them

(D) traveling

Written Expression

Directios: In questions 16-40 each sentence has four underlined words or phrases. The four undelined parts of the sentence are marked (A), (B), (C), and (D). Identify the one underlined word or phrase that must be changed in order for the sentence to be correct. Then, on your answer sheet, find the number of the question and fill in the space that corresponds to the letter of the answer you have chosen.

Looke at the following examples:

Example 1 Sampel Answer

In many cities in the world, the air is much more

A B

Polluted than it is in the 1970s.

C D

The sentence should read, "in many cities in the world, the air is much more polluted than it was in the 1970s." there fore, you should choose (D).

Example II

The computer plays a vital role in development,

A B

communication, and disseminating of ideas in today's world.

C D

The sentence should read, "The computer plays a vital role in development, communication, and dissemination of ideas in today's world." Therefore, youshould choose (C).

Now begin work on the questions.

16. For years small communities of researchers have living underground

A

in parts of the arctic where the climate is harsh and the winds are

B

strong.

D

17. Thomas Edison made the first microphone for self by combining a thin

A B C

reed and a metal conductor together.

D