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1.My brother ___ while he ___ his bicycle and hurt himself.
A. fell, was riding B. fell, were riding
C. had fallen, rode D. had fallen, was riding
2. Tom ___ into the house when no one ___.
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1.My brother ___ while he ___ his bicycle and hurt himself.
A. fell, was riding B. fell, were riding
C. had fallen, rode D. had fallen, was riding
2. Tom ___ into the house when no one ___.

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