选择下列单词并用其适当形式填空（共5小题，每小题1分）。
stress occasion peaceful violent promote astronaut
【小题1】I think a shepherd’s life is and relaxing.
【小题2】The pressure of being a doctor causes me .
【小题3】The spaceship, called Shenzhou V, was carrying China’s first , Yang Liwei.
【小题4】He has been to headmaster.
【小题5】 The Mid-Auturmn Festival is important because it is a special for family.
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