写出单词所含有的同一个字母。
例:( a ) A. board
( ) 1. A. light
( ) 2. A. teacher
( ) 3. A. computer
( ) 4. A. good
( ) 5. A. board
( ) 6. A. the B. apple B. picture B. seat B. classroom B. goose B. door B. what | C. ant C. idea C. where C. clean C. girl C. idea C. teacher | D. hand D. in D. new D. ice D. light D. hand D. hand |