将下列句子变成间接引语形式。 1."The earth is round ( 圆的 )," he said. He said . 2."Must you go so soon?" I said. I asked him . 3. "Lie down, Tom," he said. He told Tom . 4.“Don't open the door," he said. He told me . 5."Did you see Tom this morning?" the teacher asked Sarah. The teacher asked Sarah . 6."Jane is coming this week," she said. She said .