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B. the… the C. / …the D. the…/15. By the time he was 4, he _A_____ a lot of German words.A. had learned B. has learned C. learned D. learns 16 .Jim turned off the lights and then __D___ the classroom.A. was left B. had left C. has left D. left ____C_____ in Guangzhou since 2000.A. lived B. had lived C. have lived D. were living18. The train from Beijing__C_____ ten minutes ago.A. has arrived B. was arriving C. arrived D. had arrived19. The students ___B______ their classroom when the visitors arrived.A . have cleaned B. had cleaned C. was cleaned D. have been cleaned20. Fergie__B_____ the project in one hour.A. have finished B. will finish C. finishes D. has finished21. The man ___A_____ his coat and went out.A. put on B. had put on C. will put on D. was putting on22 My mother_____ in that factory at the age of 18.A. had worked B. has worked C. worked D. works23. Dad _C_______ while he _______ TV.A .fell asleep…watch B. was falling asleep…watched C. fell asleep……was watching D. had fallen asleep…watched1. We ___had painted____ (paint) the house before we moved________ (move) in.2. That rich old man __had made___ (make) a will before he died(die).3. They __had studyed_ (study) the map of the country before they _left___ (leave).4. The robbers _had run away____ (run away ) before the policemen arrived (arrive).5. I ______ (turn off) all the lights before I ___ (go) to bed.6. Paul (go) out with Jane after he _____ (make) a phone call.7. Tom __ (say) he _______ (read) the book twice.8. Our plan _____ (fail ) because we ______ (make) a bad mistake.9. When the chairman _____ (finish) speaking, he ____ (leave)the hall. Reads (have) lunch when I ____(get) to their house. I ________(arrive) at the station, he _____(leave).