12.　 He has much knowledge and good at teaching.

11.　 He has his own way of teaching.

10.　 At the age of eight he became a member of the diving team in Guangdong Province. A few years later, he won a gold medal at the 11th Asian Games and became a world Champion.

9.　　 With her help, I have caught up with my classmates.

8.　　 She often helps those who have difficulty in doing their homework.

7.　　 My English teacher, Miss Zhang, is a middle-aged woman.

6.　　 She is tall and slim with big dark eyes and black hair.

5.　　 He is short and thin with a pair of thick glasses.

4.　　 She is already in her fifties, but she looks younger for her age.

3.　　 By the age of 14, he had taught himself advanced mathematics.