Everyone learns English - unit 3: classroom (a/an/-s)Online version grammar by Duong Tuan 1 An pen Yes No 2 Three bananas Yes No 3 Six Rulers Yes No 4 An Cupboard Yes No 5 Two number Yes No 6 A Book Yes No 7 An Bag Yes No 8 An Egg Yes No 9 An apple Yes No 10 A Tables Yes No 11 An Orange Yes No 12 A Flowers Yes No 13 A Teachers Yes No 14 A Chair Yes No 15 Twelve Ball Yes No 16 A Letter Yes No 17 Eleven Pencils Yes No 18 A Friend Yes No 19 Five Crayons Yes No 20 Four Cat Yes No