How can reading make you intelligent

eading does significantly expand your vocabulary in ways that you may not notice right away. It exposes you to and lets you uncover the context of the words that you’ve probably never heard of before. Reading compels you to look up the meaning of the words you’ve just read, hence as you go further along, the more the sentences make sense to you than before you began reading them.

This goes hand in hand with vocabulary: the more you read, the more words you have available in your frame of reference to use in everyday conversations.  Reading teaches you new words and new ways to use the words more correctly when constructing sentences in your mind.

A research conducted by Dr. Anne E. Cunningham, professor of psychology in the University of Berkeley in California, shows that readers are seen to have a greater general knowledge and are able to spot patterns a lot quicker. The more patterns you spot, the more developed your analytical skills become.

they insisted that there was not enough time to learn everything.  

explanation:

if they were going to steal the answers that is simply because they insisted that there was not enough time to learn everything.