单项选择题

According to the woman, what causes most of the damage to the air

A．Industrial sources.
B．Automobiles.
C．Nitrogen sources.
D．Natural activities.
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单项选择题
The passage is about________.
A．poison control centers and doctors
B．bathing from a container or in a shower
C．the effect of water temperature on eyeballs
D．first-aid treatment of eye problems
单项选择题
The party was held________.
A．at Jane’’s house
B．at Jane’’s aunt’’s house
C．at Jane’’s sister’’s house
D．at Jane’’s brother’’s house
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