单项选择题

Sarah says that she will visit us in the summer but I can't ______ her ______ to a definite date.

A．nail... down
B．tie... up
C．pin... on
D．fasten... in
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单项选择题
I'd sooner they ______ invent the lethal weapon.
A．didn't
B．won't
C．don't
D．can't
单项选择题
The flight to Shanghai will leave from this ______ at the airport.
A．stop
B．terminal
C．end
D．termination
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