选用“should”“oughtto”“hadbetter”“haveto”“must”及其否定式填空.
1.She()betreatedlikethatbecauseshewasdonenothingwrong.
2.-()Ihandinmyhomeworktomorrowmorning?
-No,youneedn't.
3.Children()playfootballinthestreet.
4.Theteathertellsusthatwe()finishourhomeworkfirstbeforewebegintowatchTVintheevening.
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