判断，正确的画“√”，错误的画“×”。

( ) 1. mom = mommy /mama

( ) 2. dad = daddy / papa

( ) 3. uncle可以是father's brother, 也可以是sister's brother。

( ) 4. Bob's aunt is a man.

( ) 5. parents指"father and mother" 。

( ) 6. grandpa指"father's father or mother's mother" 。