单项选择题

A common ______ to jokes is to laugh.

A．response
B．reaction
C．action
D．respond
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单项选择题
I ______ Mr. Green last week and had a long talk with him.
A．called on
B．called forth
C．called after
D．called off
单项选择题
Up ______ into the air.
A．went the arrow
B．the arrow went
C．did the arrow go
D．does the arrow go
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