例題 下線部を分詞構文に書きかえなさい。 1. If you turn right, you will find a post office. 2. BecauseI had met him, I knew him at once. 3. AsI didn't know what to do. I asked him for advice. 4. While he was skiing in Hokkaido, he twisted his ankle. 5. As it is Written in simple English, this book is easy to understand. 6. Since the room was hot, I opened the window.