Read the followingpassage and mark the letter A, B, C or D onyour answer sheet to indicate the correct answer to each of the questions

Stellar Astronomy

Many parameters are used to describe a star. One of them is its temperature, which can be determined by simple observation; the color of a star and its temperature are related. Once the color of a star is identified, its temperature can be calculated through the use of scientific principles such as Wien’s Law.

There are different types of stars in the universe. For our purposes, we can classify them into two categories: variable and binary. Variable stars are those which show some degree of variability in their luminosity and magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness. At time the degree of variability may be high, requiring a telescope with an equally high light- gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting telescope.

Binary stars are those found in pairs that revolve around a common center. The closest star to the sun, Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - its ability to distinguish between two close objects having a small angular separation - must be very high.

Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration can be achieved.

The temperature of a star can be determined by its

A. Size

B. Color

C. Movement

D.  Luminosity

Mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the following questions.
William Bonney________Billy The Kid, was a famous Wild West gunman.

A. alias

B.ergo

C.bogus

D. Versus

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

Animals can’t speak our language. They can’t tell us when they are unhappy or annoyed.

A. If animals could speak, they would be able to tell us when they are unhappy or annoyed. 

B. One day we could speak animals’ language and know when they are happy or annoyed. 

C. We don’t know when animals are unhappy or annoyed because we don’t know their language. 

D. We don’t understand animals because we can’t speak their language.

Mark the letter A, B, c, or D on your answer sheet to indicate the correct answer to each of the following questions.
So far there is no vaccine________in sight for the common cold.

A. or curing

B. having cured

C.has cured

D.or cure

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.

Marriage nowadays is a choice people make on their own, but this has not always been the case in society. Thousands of years ago, the average lifespan was shorter than it is today. A man usually lived until he was about 40 years old, while women died even sooner because of childbirth. There were many wars and illnesses, and people had to protect themselves by having more children while they were still young. The parents lived through their children.

Marriage was not so much a romantic love story but a business transaction, or deal. Most marriages were arranged between parents while their children were still very young. It was the custom that the fathers made the decision on whom their children were going to marry. The mothers had little say in it since they rarely made any decisions outside the household. The fathers would meet to arrange the wedding date and the money given for the bride on her wedding date. The more money and land a girl had, the more chances she had to marry well. Therefore, it was important that her father choose the bridegroom very well. Usually, it was someone who came from a good family or who was rich too. It was very unlikely that people married outside their social class. A few well-off and rich merchants got to marry poorer noblewomen and became King’s business advisors. In a way, poor peasants had an easier choice as it was less important whom they married.

The practice of arranged marriage is still common in some countries in the Middle East, such as India or Pakistan. Here, social classes are still strongly divided and very well-kept. Often, however, arranged marriages are a sign that people do not want to let go of the past, which gives them comfort and security in an ever-changing world.

What does the passage mainly discuss?

A. Marriage as a business transaction today

B. Mothers' roles in their children's marriage.

C. Marriage practices in modern society.

D. The practice of arranged marriage.

Mark the letter A, B, C or D to indicate the sentence that is closest in meaning to each of the following questions.

Workers are expected to dress appropriately, as described in the company rules, while on the premises

A. Employees need to wear their official uniforms only when in company-owned buildings

B. When at the workplace, employees must wear clothing accordance with company regulations

C. It is preferred that workers wear their best clothes when they visit the office

D. It is better if workers put on their uniforms before they get to work, as this is more appropriate