17. sleep ________　 __________　 18. eat _________　 ___________

15. find _______　 _________　　 16. sing ________　 __________

13. begin _________　 _________　 14. arrive __________　 __________

11. visit ________　 ___________　 12. have _________　 __________

9. clean ________　 ___________　 10. talk _________　 ___________

7. listen ________　 __________　 8. dance _________　 ____________

5. buy ________　 ___________　 6. help ________　 __________

3. run ________　 ___________　 4. go _______　 _________

A、写出下列单词的现在分词和三人称单数形式。 (10分)

1. swim _______　 __________　 2. take _______　 __________