摘要： 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
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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
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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
My brother ________ while he ________ his bicycle and hurt himself．
[ ]
A．fell; was riding
B．fell; were riding
C．had fallen; had ride
D．had fallen; was riding