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, picked
C. had seen, picked D. saw, was picking
4.I don t think Jim saw me; he ___ into space.
A. just stared B. was just staring
C. has just stared D. had just stared