Mark the letter A,B,C, or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.

Chimpanzees are frequently used as stand-ins for human beings in experiments.

A. partners 

B. models    

C. stand-bys 

D. substitutes

Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.
Hypertension is one of the most widespread and potential dangerous diseases

A. colossal

B. popular

C. common

D.scattered

Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions. *

difficult

obliged

compulsory

essential

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions. *

necessary

believable

communicate

participate

choose the best option to indicate the underlined part that needs correction in each of the following questions. *

to

After

was

the

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. *

used to

has to

but

for

Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is closest in meaning to the underlined part in each of the following questions

The students are advised to concentrate on their studying

A. remember

B. pay attention to

C. be interested in

D. resemble

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is   CLOSEST in meaning to the underlined part in each of  the following questions

Books are primary means for dissemination of knowledge and information.

A. invention 

B. attempt

C. variety

D. distribution

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions

The two scientists are contemporaries. Both of them are in their late 40s

A. familiar with each other 

B. equally capable

C. defeated to each other 

D. living in the same time period

Mark the letter A, B, C or D on your answer sheet to indicate the word of phrase that is CLOSEST in meaning to the underlined part in each of the following question.

Few businesses are flourishing in the present economic climate.

A. taking off        

B. setting up         

C. growing well    

D. closing down