单项选择题

Where this plan _________ is on the small amount of time it allows for possible delays.

A．falls off
B．falls behind
C．falls back
D．falls down
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单项选择题
A．suggestionB．contextC．abstractD．information
A．suggestion
B．context
C．abstract
D．information
单项选择题
The teacher said well done and _________ me on the back.
A．beat
B．hit
C．knocked
D．patted
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