國立教育廣播電臺

英語教室：開口說英語- Prepositions-under, until, up, with, without. Subways are not always under ground. I didn`t go to bed until 2 o`clock this morning. He stood up and went out. Time is up. Up and down. He walked up and down looking for his glasses. I go to school with my sister every morning. I like the house with big windows. I usually write with the pen. The electric guitar doesn`t work without electricity. He lelt without saying goodbye.