Giúp mình vs ạ thank you

10. Be careful! I (just clean) 11. The meal (already be) 12. I (never read).... before 13. We (study). 14. We (study) lesson in this book so far. 15. We (watch).. 16. We (watch) television last night. 17. My wife and I (travel) air many times in the past 18. My wife and I (travel).. 19 ...