正确完成下面的句子。
1. I __________ (talk) to many store clerks yesterday.
2. I __________ (not have) nice trip last Friday.
3. — What __________ you __________ (do) now?
— I __________ (play) checkers.
— What __________ you __________ (do) just now (刚才)?
— I __________ (go) to Wangfujing Street and __________ (buy) a gift for my father.