Questions 11 to 15 are based on the following talk.

A． Microsoft and the government keep their arguments going on to the next century.
B． Microsoft should enjoy the right to rebut under federal copyright law.
C． The government argues that Microsoft has made is more difficult for other computer makers to compete with it.
D． Microsoft filed a brief rebutting Jackson’s contention that the company has a monopoly in PC operating system.

A． Walters just didn’t mind that he had made a mistake.
B． Walters was very nervous about the possible consequences of his incorrect translation.
C． Walters immediately offered a sincere apology to Pidau.
D． Walters felt extremely embarrassed as Pidau also happened to be an author and was quite proud of his writings too.