根据下列句子所给汉语意思写出空缺处单词，或根据所给词写出正确形式。
【小题1】They entered their child at a private (私立) school.
【小题2】At the beginning of the new term, all the students obeyed (服从)the rules of the school.
【小题3】I feel the new dress is unfortably (不舒适) tight across the shoulders.
【小题4】He was waiting for his brother's return with anxiety （焦虑).
【小题5】With the encouragement （鼓励）of the teacher, I worked harder and harder.
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解析：要求考生能根据上下文的语境和语法选出合适的单词
【小题1】 private 形容词私立的private该词的反义词是public.
【小题2】 obeyed 动词副词obey，本句是过去时，故使用过去式。
【小题3】unfortably 用副词unfortably修饰形容词tight。
【小题4】 anxiety 名词焦虑anxiety，注意该词的形容词形式anxious.
【小题5】encouragement 名词鼓励encouragement是由动词encourage转换而来的。