第二部分 英语知识运用 (共两节，满分35分)
第一节 单项填空 (共15小题；每小题1分，满分15分)
请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
21. We were shocked to hear the news that _______ two Chinese businessmen were shot to death in South Africa the other day and _______ third one died in hospital yesterday.
A. 不填; a B. the; the C. the; a D. 不填; the
22. Van Gogh succeeded in selling only one painting in his lifetime, and ______ was sold to his brother.
A. another B. that C. one D. which
23. Mr. Wang, who is said to have immigrated to the USA, ______ at No.1 Middle School in our city for twenty years.
A. has been teaching B. was teaching
C. taught D. have taught
