单项选择题

A．The invention of machines.
B．The invention of the alphabet.
C．The invention of rockets.
D．The invention of agriculture.
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单项选择题
A．They saw a woman running fast along the road.B．They saw a woman running after a man.C．They saw a woman running and shouting for help.D．They saw a man beating a woman.
A．They saw a woman running fast along the road.
B．They saw a woman running after a man.
C．They saw a woman running and shouting for help.
D．They saw a man beating a woman.
单项选择题
A．He failed to get the teacher’s signature in time.B．He got sick the next day.C．He did not turn in the add slip the first day the class opened.D．He took too many classes.
A．He failed to get the teacher’s signature in time.
B．He got sick the next day.
C．He did not turn in the add slip the first day the class opened.
D．He took too many classes.
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