for our dear students who are ready to
work hard
to those industrios students who aspire to
full mark .here's the way .
some complied exercises
after doing them you will be sure to reach your goal which is ours
that's full mark
if you need any hel
i'm ready to give hand
Mr Ahmed Abd Al Samea
Mahmoud Shehab secondary school
my dear colleagues can also use these exercises if they wished

here's the link
http://www.4shared.com/file/171512494/792e11fa/unit_9_exercise.html

الف الف شكر

thaaaaanks alot