单项选择题

One of the first known methods of advertising is the outdoor ____ .

A．display
B．Journey
C．exercise
D．adventure
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单项选择题
It was when Tom got to the office ____ the telephone rang.
A．Which
B．that
C．how
D．what
单项选择题
Only in this way ____ the plan successfully.
A．we can carry out
B．we can agree on
C．can we agree on
D．can we carry out
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