1. Coincidentally, he saw her at the supermarket twice this week. （偶然にも彼は今週２回もスーパーで彼女と会った） 2. Coincidentally, I went to the same university as my coworker. （偶然にも私の同僚と同じ大学へ行っていた） 3. Coincidentally, my sister's wedding is on the same day as my brother's birthday. （私の妹の結婚式と、私の弟の誕生日が偶然にも同じ日だった） 4. Coincidentally, the doctor's wife has a father who is a doctor. （偶然にもその医者の妻の父も医者だ） 5. Coincidentally, we left the country just as he came to visit. （彼がその国を訪れた時、ほぼ同時に私達がその国を離れた）