Reading carefully, Mary found what she needed in the book. 這句是Because Mary read carefully, Mary found what she needed in the book.變來的嗎 網路上寫Reading carefully,....是形容詞片語，什麼是形容詞片語？ 它一定放句首嗎 Arrested by the police, David admitted what he had done. 這句是Because David was arrested by the police, David admitted what he had done.變來的嗎 Reading carefully 和Arrested by the police為什麼都是形容詞片語