写出下列大写字母的小写字母。（共10小题，每小题2分，共20分）
1. BEE ___________________        2. BAG ___________________
3. BED ___________________        4. HB ___________________
5. CD ___________________          6. ABC ___________________
7. AD ___________________         8. CAAC ___________________
9. BEC ___________________         10. FACE ___________________