_天之痕__

HW:
The president of the company dicated a letter  to his secretary.
The country that one  the world dicate the terms of peace to the concrete country.
The direction was vague ,it was impossible to complete the assignment
He is very fluent in English but not in french.
Astronomy give us the motion of the sun,moon and stars.
Friction against the rock combine with the weight of the climbers that cause to rop to break.