摘要：----Where are the twins? ----They to the library. A. have gone B. have been C. went D. were 12 Not only you but also I interested in drawing. A. is B .are C. am D. was 13–We should keep our classroom . --You are right. We should clean it every day A. cleaning B. cleans C. clean D. cleaned 14–How long has Mr Wang taught in your school? ---He has taught in our school . A. ten years ago B. before ten years C. for ten years ago D. since ten years ago.

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