问题描述：
1.Mr.Li is the oldest teacher in our school.He is______(fifty-five,fifty-fifth)years old.
(选择适当的序数词填空）
2.Go straight ahead.take the______(five,fifth)right.
3.The_______(four,forth)month of the year is April.
(选择适当的序数词填空）
2.Go straight ahead.take the______(five,fifth)right.
3.The_______(four,forth)month of the year is April.
问题解答：
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