单项选择题


A. tell the manager in advance.B. sign the manager's noticeboard.C. say what kind of event they are planning.

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单项选择题
A. To repair the machine, follow the instructions in the book.B. Consult the book for details before using this machine.C. If the machine develops a problem, report it in the book.
单项选择题
A． what time of day it is.B． how long they last.C． where the caller lives
A． what time of day it is.
B． how long they last.
C． where the caller lives
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