用括号内所给的适当形式填空。 1.  Don't forget _______ (turn) off the TV when you go to bed. 2.  That's the _______(end) of the story. 3.  The mice all _      __ (flee) away when the cat appeared. 4.  By the time I got to the bus stop,  the bus had already _______(leave). 5.  They_______ (make) a lot of friends since they came to our school. 6.  She was so_______(embarrass) that he didn't know what to say at the moment. 7.  We _______(learn) eight units by the end of last week. 8.  My sister _______ (watch) TV when I _______ (get) home yesterday. 9.  Keep quiet. Dad _______(listen) to the news now. 10.  They have been ___ (marry) for eight years.