Ex. 8 Fill in the blanks with prepositions where ncccssary. of, to, with, for, in, by, in terms of
I. If an idea explains or correlates a number ... facts, wc call it a
hypothesis. 2 Scientists subject the idea ... experimental checking. 3 If
the hypothesis agrees ... the results ... experiment, wc call i t ... a theory
or ... a law. 4 ... example, everybody knows the periodic law. 5 The
explanation... the fact is ... the atomic theory. 6...crystals the atoms arc ... a regular order. 7...the atomic thcoiy wc mean that substanccs consist
... atoms. 8 Scientists explain facts ... atoms and their structure.
Moscow
Russia
1/12/2010
Dear Andrea,
Thank you for your letter. I’m awfully sorry for not writing for so long because I’ve been busy at
school studying for my exams. How are you keeping?
In your letter you took a deep interest in my hobbies. Well, I do collect small things and most
of them are small figures of penguins. Frankly speaking, I like buying clothes on my pocket
money. My mother doesn’t like it and we often argue. My friends spend their money on going to
a cinema or on computer games. Isn’t it silly?
As I’ve heard you have just entered courses. What courses do you attend? Do you go alone
or with your friends? Do you enjoy spending your time there?
Well, got to go now.
Keep in touch.
Best wishes,
Katya