问题 选择题 每个小题里面都有一个单词和其他三个不属同一类，请把它选出来。( ) 1. A. brother ( ) 2. A. old ( ) 3. A. talking ( ) 4. A. finger B. sister B. sing B. playing B. headache C. family C. short C. king C. knee 答案 答案：A
