单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A．An alien spacecraft landing.
B．The impact of a meteorite.
C．A volcanic eruption.
D．The blizzard conditions in Alaska.
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单项选择题
A．Mary is worthy of the prize.B．Mary has granted the prize.C．Mary fails in the speech contest.D．The man doesn’t think Mary deserves the prize.
A．Mary is worthy of the prize.
B．Mary has granted the prize.
C．Mary fails in the speech contest.
D．The man doesn’t think Mary deserves the prize.
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