Dùng thì quá khứ đơn hoặc quá khứ tiếp diễn để hoàn thiệt câu
- It was a beautiful Sunday morning.
- Marry and Susan/ decide/ to take/ dog/ for walk/ in park
- Marry/ sit/ bench/ read book/ while/ Susan/ take/ the dog/ walk
- half an hour/ Susan/ come back/ alone
- they/ look/ for dog/ everywhere/ but/ not find/ him
- when/ get/ dark/ they/ decide/ return home
- when/ they/ arrive/ home/ dog/ lie in front of the door
- look at each other/ laugh