Some volunteers(志愿者) from Beijing arrived in Shanghai April 29 to work for the World Expo.
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on
B
at
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of
D
to
推荐题目
A：Where is my baseball?B：It’s the table, the floor.
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on, under
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under, on
C
under,under
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to, on
We should try our best to help the animals _______.
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in dangerous
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danger
C
in danger
D
dangerous
Let’s talk about the differences _________ Chinese and English names.
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on
B
of
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between
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with