请问They are American apples.的单数形式

请问They are American apples.的单数形式 Are they American cars?改为单数 为啥 are they american students?改为单数形式 Are they American cars?（改为单数） Are they american or english 这句啥意思 The turners are American.They are in Beijing n____ We are ------- but they are--------.a.American Japanese b.America Japanesec.American Japan c.Americans Janpan The foreign teachers in our school America,they are american /They/are from American.对划线部分提问 are they american用english改为选择疑问句 American (复数）_________American有复数呀?那为什么说They are American .American后不加s呢? 请问：American有复数吗?American有复数吗?如we are American.还是we are Americans. They are American and they are in the same class___their school They are ----.They speak good English.A.Chinese B.Norwegian C.American D.Englishman选哪一个?为什么选American American are very dirrct people .When they want something they sayyesand w They are American boys.(改为单数句) This is an AmericaThey are American boys.(改为单数句)This is an American boy.对不对?给好评. They are twins.They are _ A.English B.an English C.English boy D.two American Are they from___?A/Australian B/English C/American D/Canada