完形填空。 My name 1 Jack Green. Jack is my 2 name, 3 Green is my last name. I'm twelve. I'm 4 English boy. I 5 a sister. 6 name is Mary. She is seven. She is a 7 . She 8 watching TV. My father and my mother are 9 , and 10 like their work. ( )1. A. am ( )2. A. family ( )3. A. and ( )4. A. a ( )5. A. have ( )6. A. His ( )7. A. teacher (教师) ( )8. A. like ( )9. A. teacher ( )10. A.They B. is B. last B. but B. an B. has B. Her B. student (学生) B. likes B. a teacher B. Them C. are C. first C. or C. the C. am C. She C. boy C. is like C. teachers C. Their