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I have never talked to the headmaster before.A.  It’s the first time I will ever have talked to the headmaster.B.  It’s the first time I had ever talked to the headmaster.C.  It’s the first time I ever talked to the headmaster. It’s the first time I have ever talked to the headmaster. Tài liệu giúp bạn tham khảo, ôn tập và đạt kết quả cao. Mời bạn đọc đón xem !

 Our …………. shows that in ten years the firm will spend twice as much on research and development as it currently does. Despite the serious economic slump, Morgan and Irene Inc., an oil company, continued making a good. Tài liệu giúp bạn tham khảo, ôn tập và đạt kết quả cao. Mời bạn đọc đón xem !