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第一篇:用am, is, are填空 I ______ a student. He ______ my brother. They ______ good friends. The cat ______ on the chair. We ______ in the classroom. 第二篇:选择...
第一篇:用am, is, are填空 I ______ a student. He ______ my brother. They ______ good friends. The cat ______ on the chair. We ______ in the classroom. 第二篇:选择...