... Whats is this? 23. A.This is a door B. This is door C. This a door24. Is this your book?A.Yes, it is your book B. Yes, it is my book C. Yes,this is.25. A. Is this a eraser? B. Is this eraser? ... am thirteen C. I am thirteen years old14.Số 15 sẽ đợc viết là:A.fifteen B.fiveteen C.fifeteen15. Giới thi u bạn mình la Ba với Lan, em sẽ nói:A.Hi,Lan. This is name Ba B.Hi,Lan. Ba is this ... Yes,this is.25. A. Is this a eraser? B. Is this eraser? C. Is this an eraser?26. A. This is a waste basket. B. This is waste basket. C. This is a basket waste.27. A. Thats a my classroom. B. Thats...