Read the following text and fill in the blanks with suitable words from the box. There are more words than needed. Make any grammatical change if necessary.

device	trained	about	perform	essential	great
abacus	large	special	recent	refer	call

The computer is a fairly (a) —— invention. It has now become an (b) —— part of modern life. It has greatly benefited us and brought (c) —— revolutionary changes in our life. Any (d) —— that helps people perform mathematical calculation may be (e) —— a computer. In this sense, the (f) —— is a simple computer. Today, however, the term computer (g) —— to a special kind of electronic machine that can perform mathematical calculations and process (h) —— masses of information at a (i) —— speed. in a few minutes, a computer can perform calculation that (j) —— mathematicians would need years to complete.

Read the following text and fill in the blanks with suitable words from the box. There are more words than needed. Make any grammatical change if necessary.

Communicative competence refers to the (a)—— to use language appropriately in various circumstances. There are two ways of (b)——communicative competence in a language. The first is (c)——which is similar to the way people develop ability in their (d)———tongue. They are aware only of the (e)——-that they are (f)——the language for (g)——-It is a (h)——subconscious process in which users not (i)——of acquiring a language. In non technical terms, acquisition is picking up a language (j)——.

Read the following text and fill in the blanks with a suitable word from the box. There are more words than needed. Make any grammatical change if necessary

Many diseases are rising at an (a)———— rate which experts believe is due to increased pollution of the environment, Some specialists believe that pollution (b)———- to be greater in urban areas. Although (c)—————- societies too are (d)————-by increased use of chemical (e)—————- - and insecticides. Nevertheless, today city people appear to suffer from many more diseases and (f)———— more (g)———— than country people. Now let us see how life in cities is (h) ————- from that in the country. Harmful (i) ———-- in water and air are (j) ————- environment pollution.

Read the following text and fill in the blanks with suitable words from the box. There are more words than needed. Make any grammatical change if necessary:

Population (a) —— is considered as one of the greatest (b) —— in our country. Many people (c) —— that over population is (d) —— and it causes (e) —— But, in fact, proper (f) —— and management can turn this (g) —— into an asset. If we can develop our human (h) —— properly, it can be a (i) —— way for poverty (j) ——.

Read the following text and fill in the blanks with suitable words from the box. There are more words than necessary. Make any grammatical change if necessary:

Facebook is an online networking service. It is a (a)—— social networking service. It is (b)—— friendship and relation all (c)—— the world. Though Mark Zucker Berg first (d)—— Facebook, (e)—— very short time, it gained much popularity. Now it has over one billion active users. It (f)—— love and shares sorrows. But sometimes it is (g)—— Students are spending much time in (h)——— facebook which is very alarming for the future generation. Adults are also getting (i)——— to it which is causing many problems in their (j)—— life. So, we should be aware of using Facebook.