Reading passages

28 -From its description, we can say that latex ---- .
A) is a hard substance similar to rubber 
B) must be a fairly thin, white liquid 
C) is almost entirely pure rubber 
D) is a by -product of rubber 
E) is less useful than crude rubber 
29 -It's stated in the passage that untreated crude rubber is not used in industry, 
because -
-- .
A) its content of sulphur carries a nasty odour 
B) its milky colour is undesirable 
C) it lacks any kind of elasticity 
D) it's neither hard nor strong enough 
E) it contains far too many impurities 
 
30 -In the process of vulcanisation, the principle is, that ---- .
A) the heat applied to the mixture should be high enough for rapid evaporation 
B) the sulphur contained in the rubber should be extracted as much as possible 
C) how hard or flexible the rubber becomes depends, on its sulphur content 
D) the more sulphur is used, the harder and the more elastic the rubber becomes 
E) the rubber can be separated from water by being heated at high temperatures 
The origins of a written literature can be found in most of the civilisations of the ancient 
world; in India. China and among the Jewish people, whose great work of literature is the 
Old Testament of the Bible. However, it is the Greeks whose literature is taken to represent 

---

 
 
the start of Western literature. Their greatest single contribution was drama, a form of 
literature that has continued undiminished to the present day. Other literary forms that 
developed from the time of the ancient Greeks and Romans onward have been poetry in its 
many different styles and forms, the essay, biography and autobiography, and the novel. 
Other types of written work from these periods, dealing with such matters as history, 
philosophy, politics, religion, science and criticism may also be classified as literature 
from the point of view of style.