Directions: There are ten short incomplete dialogues between two speakers, each followed by four choices marked A, B, C and D. Choose the answer that appropriately suits the conversational context and best completes the dialogue. Mark your answer on the ANSWER SHEET by drawing with a pencil a short bar across the corresponding letter in the brackets. Doctor: What seems to be the problem Patient:______
A．I can’t bear the strain at work. B．I strained my back at work. C．The work bores me. D．It’s killing m