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roken, broken ( ) Great Wall ______ all over the world. A. knows B. knew C. is known D. was known( ) can go out if your homework ______.A. is done B. will do C. will be done D. are finished把下列句子改寫成被動語態(tài) make machines in that factory. 2. My mother told us a story last night. 3. Kate is feeding the chicken at the moment. 4. David was reading a book while we were visiting him. 5. They have put out the forest fire already. 6