There are many sources of pollution in our modern world. At present, the most severe sources are acid rain, car exhaust fumes and oil spills. Factory chimneys give (1)_________ smoke that contains sulfur dioxide and nitrogen oxide. These gases combine with the moisture in the atmosphere to (2)_________ sulfuric acid and nitric acid. When it rains, these acids dissolve in the rain and turn it acidic. Acid rain is thought to be the worst pollution problem of all. It has (3)_________ aquatic life by turning many lake into lifeless bodies of water. In these areas, there is no limestone in the rocks to neutralize the acid rain naturally. One remedy is to pump limestone into the acidic lakes. (4)_________, it is not possible to do this on a large enough scale to save all the lakes. Car exhaust fumes contain carbon monoxide and lead which are highly poisonous. In big cities, the exhaust fumes build (5)_________ and pose a health hazard to human beings. Pollution of the sea by oil threatens marine life. Much of the oil comes from ships that clean their fuel tanks while at sea. Offshore oil wells also discharge vast amounts of oil into the sea. Pollution of the sea can also be caused by oil spills. An oil spill may occur as a result of accidents involving oil tankers

WORLD WIDE WEB
World Wide Web (WWW), computer-based (1) _______ of information resources that combines text and multimedia. The information on the World Wide Web can be accessed and searched through the (2) _______, a global computer network. The World Wide Web is often (3) _______ to simply as “the Web.” The Web started to become a (4) _______ resource after 1993 when the first widely distributed browser provided a convenient way to (5) _______ a variety of information on the Internet
Read the reading below carefully, and then complete it with the best option A, B, C or D given below
(1) ....................

The information on the World Wide Web can be accessed and searched through the (2) _______, a global computer network.

Car exhaust fumes contain carbon monoxide and lead which are highly poisonous. In big cities, the exhaust fumes build (5)_________ and pose a health hazard to human beings. Pollution of the sea by oil threatens marine life. Much of the oil comes from ships that clean their fuel tanks while at sea. Offshore oil wells also discharge vast amounts of oil into the sea. Pollution of the sea can also be caused by oil spills. An oil spill may occur as a result of accidents involving oil tankers.

The Web uses (1) _______, which means that information can be displayed in a wide variety of formats. (2) _______ can read text, view pictures, watch animation, listen to sounds, and even explore
interactive virtual environments on the Web. A user can (3) _______ seamlessly from a document or Web page stored on the computer to a document or Web page (4) _______ on another computer. The Web
offers a place where companies, universities and (5) _______ institutions, and individuals can display information about their products, services, facilities, or research, or their private lives.

Read the reading below carefully, and then complete it with the best option A, B, C or D given below
(1) ....................

One of the most important (1) _______ of a standardized test is time. You'll only be allowed a certain number of minutes for each section, so it is very important that you use your time (2) _______. The most important time strategy is pacing yourself. Before you begin, take just a few seconds to survey the test, noting the number of questions and the sections that looks easier than the rest. Then, make a rough time schedule based on the amount of time (3) _______ to you. Mark the halfway point on your test and make a note beside that mark of the time when the testing period is half over. Once you begin the test, keep moving. If you work slowly in an attempt to make fewer mistakes, your mind will become bored and begin to wander. You'll end up making far more mistakes if you're not concentrating. If you take too long to answer questions that stump you, you may end up (4)
_______ out of time before you finish. So don't stop for difficult questions. Skip them and move on. You can come back to them later if you have time. A that takes you five seconds to answer counts as much as one that takes you several minutes, so pick up the easy points first. (5) _______, answering the easier questions first helps build your confidence and gets you in the testing groove. If you're a little ahead, you know you're on track and may even have a little time left to check your work. If you're a little behind, you have several choices. You can pick up the pace a little, but do this only if you can do it comfortably.

Read the reading below carefully, and then complete it with the best option A, B, C or D given below
(1) ....................