第二部分：词汇知识运用（共两节，满分40分）
第一节：多项填空（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．“Despite the great development we have achieved in the past years, we are perfectly __________ that China, with 150 million people still living in poverty, remains a developing country , whose roots will forever be in the developing world,” said the Chinese minister.
A. curious B. conscious C. convenient D.concerned
22．World number one male table tennis player Ma Long from China _________ his title at the seasonal final here on Sunday in Macao beating Zhang Jike by 4-2.
A. defended B. protected C. defeated D. saved
23．Though there is no ________ for AIDS now, we can prevent it from spreading.
A. treat B.help C. cure D. hope
