从每小题的A、B、C、D四个选项中，选出能填入空白处的最佳选项。并
在答题卡上将该选项涂黑。
11. on-going division between English-speaking Canadians and French-speaking Canadians is ______ major concern of the country.
A. The; 不填 B. The; a C. An; the D. An; 不填
12. He ______ the invitation to go to New York because he had signed up for a Summer Camp.
A. turned up B. turned away C. turned down D. turned off
