4、的句子中,从句中是短暂性动作(用过去时)。While引导的句子中,从句是持续性动作(用过去进行时)。通过练习题来练练功!1. While we _________ (wait) for the bus, a girl __________ (run) up to us.2. I __________ (telephone) a friend when Bob __________ (come) in.3. I _____ (have) my breakfast at half past six y
5、esterday morning.4. She _____ (make) her dress the whole afternoon.5. What _____ you ___ (do) at that time? We _____ (watch) TV.6. What _____ your father _____ (do) when he was your age?THANKYOU!