单项选择题

—（）do you visit your grandparents before
—Every winter.

A．How long
B．How often
C．How soon
D．How much

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单项选择题
In the Mediterranean seaweed is so abundant and so easily harvested that it is never（）of great.

A．fare
B．payment
C．worth
D．expense
单项选择题
The new librarian still doesn't know（）the out of date newspapers and magazines.

A．what to deal with
B．how to deal with
C．how to do with
D．what to do away with
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