WWW.K51.CN 考无忧试题网Exercises Of The Tenses Review1. I usually (get) up at 6:00, but yesterday I (get) up at 7:00, and tomorrow I (get) up at 6:30.2. Listen! Someone (knock) at the door. 3. I _(be)in Beijing for two years.4. How often _ Andy _ (surf) the Internet?5. He fell asleep while he _(read) a book.6. I _ never _ (hear) of that man before.