用所给词的适当形式填空。
1. I enjoy ____ (talk) about things with friends in English.
2. When I listen to music, I am very ____ (relax).
3.—What language do you speak? —I speak ____ (Japan).
4. Look at the boy! He's ____ (lie) on the grass.
5. I often go ____ (shop) with my mother on weekends.