单项选择题

From the story we can see that ________

A. there are not as many glaciers as there were in the past
B. glaciers does nothing to the land as they moved over it
C. glaciers can be found in warm places

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单项选择题

The snow that fell on the mountain ______.

A． made lakes on mountains
B． became ice
C． changed into water

单项选择题

Tom was good at all subjects.

A． Right.
B． Wrong.
C． Donesn’t say.