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1. Smith's career as a television presenter began five years ago.                               A. Smith had been a television presenter for five years                                                 B. Smith has been a television presenter five years.                                                   C. Smith has been a television presenter since five years.                                         D. Smith has been a television presenter for five years.                                             2. There were a lot of errors in his essay.         A. He made a lot of errors in his essay.     B. He makes a lot of errors in his essay.         C. He had made a lot of errors in his essay.                                                         D. He has made a lot of errors in his essay.                                                         3. Mrs quyen taught the mute but she doesn't do it any more.                               A. Mrs quyen used to teach the mute.       B. Mrs quyen has used to teaching the mute.                                                             C. Mrs quyen gets used to teach the mute D. Mrs quyen is used to teaching the mute