True: an orange, an elephant, an apple, a drink, a sandwich, a banana, a biscuit, a lunch box, False: an pen, a orange, an book, a apple, an bag, a elephant, an apples, an oranges,

FF1 a/an

列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?