选出不同类的一项。 (______)1. A. desk B. chair C. every (______)2. A. window B. door C. flag (______)3. A. stand B. Monday C. Sunday (______)4. A. clean B. chair C. door (______)5. A. Tuesday B. blackboard C. Friday
填空。 1. He is standing ______ a chair. 2. He is cleaning ______ window. 3. Sally is ______ (clean) the window. 4. It _____ (be) Friday. 5. Let’s _____ (clean) our classroom.