用适当的数词完成下列句子
1.Oneh_______yearsisacentury.
2.Thursdayisthef_______dayoftheweek.
3.Autumnisthet________seasonoftheyear.
4.ChristmasisonDecemberthet_______eachyear.
5.Therearet_______monthsinayear.________
6.Mybrotherisjust20.Todayishis_____(20岁)birthday.
7._______(三分之二)ofthefishhavebeensoldout.__________
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