They're American boys.(改为单数)
They're American boys.(改为单数)
1.They're american cars 改为单数 2.They are japanese actresses 改
They are American boys.(改为单数句) This is an America
They are American teachers(改为单数句)
Are they American cars?(改为单数)
are they american students?改为单数形式
They areEnglish boys.改为单数形式
They're good policewomen.(改为单数形式)
They're English books.改为单数形式
They‘re eggs 改为单数句
They're my uncles.改为单数形式.
they're expensive knives.改为单数句