1. A.2. D.about后面跟的是具体的事,而at后多跟人3. D. arms race军备竞赛4. B. disappointed常指感到的,而disoppointing指令人的,带-ly的是副词,带-ment的是名词5. B hooked up on to,着迷,意即“被钩住”,所以用过去分词6. congratulate是及物动词,所以后面要加them...
1. A.2. D. at 后面一般跟人3. D. arms race军备竞赛4. B. dissappointingly修饰动词play,须用副词,而disappointed是形容词5. B hooked up on to,着迷,意即“被钩住”,所以用过去分词6. congratulate是及物动词,所以后面要加them...