16. While her brother was in the army, Sarah ___________ to him twice a week.       A. was writing            B. wrote                               C. has written       D. had written 17. The Titanic _______ the Atlantic when it _______ an iceberg. A. was crossing / struck                                           B. had crossed / was striking C. crossed / had struck                                             D. is crossing / strikes 18. In the 19th century, it _______ two or three months to cross North America by covered wagon.        A. took                       B. had taken                         C. had taken          D. was taking 19. Last night at this time, they _______ the same thing. She ______ and he ­­­­­­­­­­­­­­­­_________ the Newspaper. A. are not doing / is cooking / is reading                 B. were not doing / was cooking / was reading C. was not doing / has cooked / is reading              D. had not done / was cooking /read 20. When I _____ home last night, I ____that Jane ______ a beautiful candlelight dinner. A. had arrived / discovered / prepared B. was arriving / had discovered / was preparing C. have arrived / was discovering / had prepared D. arrived / discovered / was preparing 21. After he ____________ his English course, he went to England to continue his study.      A. finish                             B. finishes              C. finished            D. had finished 22. Angelina Jolie is a famous actress. She ________ in several films.       A. appears                      B. is appearing           C. appeared                    D. has appeared 23. Mai____ in HCM for five years.       A. lives                            B. has lived               C. is living                     D. was living 24. My little sister________ "sleeping beauty" several times.       A. watches                      B. is watching           C. has watched            D. watched       25. I ______ to New York three times this year.             A. have been                  B. was                         C. were                          D. had been 26. I ______ her since I _____ a student.         A. know/ am                B. knew/ was              C. have known/ am     D. have known/ was 27. The train _____ when we got to the station.         A. just left                    B. just leaves               C. had just left            D. will leave 28. Her father ______ when she was a small girl.       A. dies                            B. died                        C. has died                  D. had died 29. Almost everyone _______ for home by the time we arrived.       A. leave                          B. left                          C. leaves                      D. had left 30. I ______ to the same barber since last year.       A. am going                   B. have been going     C. go                           D. had gone