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英语：Read 1a and complete the sentences with usually,always,often,sometimes,seldom,or never.
汉语：阅读1a,并用usually,always,often,sometimes,seldom,or never这些词来完成下面的句子.Read1aandfillintheblankswiththecorrect wordsfromthelist in1b阅读1a并用1b的列表中的正确的单词填空。