CHỌN ĐÁP ÁN ĐÚNG NHẤT A,B, C HOẶC D RỒI KHOANH TRÒN VÀO ĐÁP ÁN ĐÚNG

Question

31. How many floors ... in your school ? A. there are B. there has C. are there D. have there

Answer

31. How many floors ... in your school ? A. there are B. there has C. are there D. have there