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jor is C) have majored D) majoring23, A cool rain was falling, ___ with snow. A) mixed B) mixing C) to mix D) having mixed24, ____ by the police, the kidnappers had no choice but to surrender.A) Surrounded B) Surrounding C) having surrounded D) To be surrounded25,____ equal educational opportunities, American Indians in the reservations remained backward and illiterate for a long time. A) Deprived off B) Depriving off C) Deprived of D) Depriving of26, All the exam papers ____, the teacher sent the class home.A) having been handed in B) having hands in C) handing in D) being handed in 27, ____ in 1636, Harvard is one of the most famous universities in the United States.A) Founding B) It was founded C) Being founded D) Founded28, There ____ no fresh drinking water and no good farm land, it was not a fortable place in which to live. A) be B) was C) were D) being29, ___ in Beijing for quite a few years, Mr. Park had little difficulty understanding Chinese.A) having lived B) Lived C) Living D) To live30, Any packet ____ properly will not be accepted by the post office.A) not to be wrapped B) not being wrapped C) not wrapped D) not having been wrapped31, The lab ____ next year will be more advanced than the old one.A) built B) to be built C) being built D) to build32, Anna was reading a piece of science fiction, pletely ____ to the outside world.A) being lost B) losing C) having lost D) lost33, He was sitting in the chair, ____ a book. A) read B) was reading C) reading D) with reading34, Such ____ the case, there were no grounds to justify your plaints. A) is B) was C) be D) being35, Peter is a good student, ____ his best subject. A) as English B) English as C) being English D) English beingKeys:15 CAAAA 610 ACBCC 1115 AACBA 1620 BCADA 2125 DDAAC 2630 ADDAC 3135 BDCDD4