介词填空。 1. He's _______ Grade Seven. 2. Look, the boy is _______ the bike. 3. The man the black is my teacher. 4. The girl ________ a green skirt is his sister. 5. What are those _______ English? 6. Jane is _______ Toronto. 7. What your mouth? 8. The film star is very tall glasses. 9. He looks his father. 10. Please give the letter Amy Class 3. 11. Li Ming stands _______ the tree. 12. Look the picture. 13. Nanjing is Jiangsu. 14. Draw a picture a film star. 15. Which girl? The girl green.