【单选题】Though he refused any responsibility for the failure of the negotiations, Stevenson had no right to______ himself: it was his______ that had caused the debacle.
【简答题】A. He did not spend money freely though he had a lot of money. B. He was always well-dressed. C. He had a luxurious car. D. He worked hard for a living.
【单选题】(Even though) he (had been studying) English for three years (before) he came to England, it is still difficult for him to make himself (understand).