Thatisapen的精選

問題詳情：按要求完成句子1．Thatisapen.(改為否定句)________________apen.2．Thisisanorange.(改為複數句)________are________.3．ThankyouforyourEnglishbook.(寫出答語)____________________．4．Isthisyourruler？(改為同義句...