单项选择题

Why did the highway in northern California collapse（）

A．There were fatal mistakes in its design.
B．The builder didn’t observe the building codes of the time.
C．The traffic load went beyond its capacity.
D．It was built according to less strict earthquake-resistance standards.

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单项选择题
What do we know about Mount Etna from the passage（）

A．One of Etna’s recent eruptions made many people move away.
B．Etna’s frequent eruptions have ruined most of the local farmland.
C．Etna’s eruptions are frequent but usually mild.
D．There are signs that Etna will erupt again in the near future.
单项选择题
What does the woman mean（）

A．She’s proud of being able to do many things at the same time.
B．She is sure to finish all the things in a few hours.
C．She dreams of becoming a millionaire someday.
D．She’s been kept extremely busy.
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