【摘要】一、 单项选择 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 ___. A. slipped, was looking B. had slipped, looked C. slipped, had looked D. was slipping, looked 3.The last time I __ Jane she ___ cotton in the fields. A. had seen, was picking B. saw, pic
