选择所给短语，用其适当形式填空。 so far, some day, bathing suit, clean out, get back to sb,be off, lead singer, thanks to, turn off, look forward to, 1.  Oh, it's getting late.  I really must ______ now.  See you tomorrow. 2. ______ my math teacher,  I passed my math test easily this time. 3.  My cousin wants to be a ______ in the famous rock band. 4.  Just go on with your research work, Jenny.  I'm sure your dream will come true______. 5.  After I finished doing all my homework,  I______the light and went to bed. 6. Yesterday afternoon, I went swimming with my friends. But I forgot to take my ______ with me. 7.  If I were you,  I would ______ all those old books and threw them away. 8.  I'm sorry, Jim.  I was rather busy just now and couldn't ______ on time. 9.  My mother was very worried about my brother.  We haven't heard from him ______. 10. We will be at the train station on Lime and ______ seeing you.