第二部分：词汇知识运用(共两节，满分30分)
第一节 多项选择(共10小题；每小题1分，满分10分)
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21. When delivering a speech, you should adjust your language to the age of your ______ au dience.
A. target B. entry C. boundary D. concept
22. But for his help, we wouldn’t have succeeded. So we ______ his timely aid.
A. distributed B. contributed C. acknowledged D. admitted
23. It seemed somewhat ________ of a sensible man to drive 3 hours just for a 10-minute face-to-face talk, but I did that to interview Justin Bieber.
A. absurd B. relevant C. clumsy D. aware
24. The outbreak of this incident has given us much for thought, forcing us to ______ seriously on the past and the future.
A. depend B. reflect C. concentrate D. congratulate
25. I always think it was such a(n) ______ for me to have spent a day with kids in the Children’s Home.
A. certificate B. assessment C. privilege D. arrangement
26. While the government says there is a(n) ______ supply of houses, prices of apartments have been going up these years.
A. parallel B. absent C. abundant D. short
27. Since Australia is a multicultural and unique society, it is probably hard for Chinese students to _______
