单项选择题

A．He established a government service.
B．He developed a system called "star routes".
C．He built a lot of post offices.
D．He established the postal system.
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单项选择题
A．To punish Mr. Brown.B．To visit his uncle.C．To receive the bills.D．To inquire something.
A．To punish Mr. Brown.
B．To visit his uncle.
C．To receive the bills.
D．To inquire something.
单项选择题
A．Check out a chemistry book.B．Make copies of all the pages in the book.C．Put a notice on the bulletin board.D．Look for a copy of the book on the reserve shelf.
A．Check out a chemistry book.
B．Make copies of all the pages in the book.
C．Put a notice on the bulletin board.
D．Look for a copy of the book on the reserve shelf.
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