1,Next Sunday, Tom __________ his 20thbirthday. A.celebrate B.celebrated C.is celebrating D.was celebrating 2,After .... dinner, I watched television .A. I had had B. I have had C. having had D. A&B 3,A burglar .................. into the house while we .................. television A. broke -were watching B. broke -watched C. had broken –watched D. broke -had watched 4:I............... that a similar message .............to my office two days earlier .A. discovered -was sent B. had discovered -was sent C. discovered -had been sent D. had discovered -had been sen 7:While she............ (take)a shower, the phone ..................(ring) A. took/ was ringing B. took/ rang C. had taken/ rang D. was taking/ rang 8A. gainedB. watchedC. accomplishedD. cooked