用所给单词的正确形式填空。
【小题1】She will come back home on June ______ (twenty-one).
【小题2】Tomorrow will be a sunny day. We ______ (have) a picnic tomorrow afternoon.
【小题3】We will have an important ______ (meet) next week.
【小题4】There are twelve ______ (month) in a year. The______ (nine) month is September.
【小题5】I ______ (plan) for my study now.