单项选择题

What are they talking about

A． An experience.
B． A lot of questions.
C． The weather
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单项选择题
What beneficial result does the volcanic ash have
A． It served as a fertilizer for crops.
B． It formed a new mountain.
C． It destroyed various insect pests.
单项选择题
A．gettingB．aimingC．appearingD．sticking
A．getting
B．aiming
C．appearing
D．sticking
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