例：
—What happened to you?
—I went to the park. I ran for the bus. Then I fell over.
1．
—What
__________ to you?
—I
__________ __________. Then I
__________ on the
__________.
2．
—
__________ __________ to you?
—I
__________ for a
__________ __________. Then I
__________ __________ the bike.
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