单项选择题

I ______ a very interesting program on the radio this morning.

A．listened
B．heard
C．heard of
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单项选择题
-- Are you Jim-- ______.
A．Yes, I am
B．Yes, I'm
C．No, I'm not
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Which sport ______ you ______ today
A．are, on
B．do, in
C．are, in
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