they are teacher.变为否定句第二个问题：it‘s an English car 变为复数第三个问题：that shirt is white 变复数
问题描述：
they are teacher.变为否定句
第二个问题：it‘s an English car 变为复数
第三个问题：that shirt is white 变复数
答
They aren't teachers.
They are English cars.
Those shirts are white.
答
they are not teachers
they are english cars
those shirts are white