/They/are from American.对划线部分提问
/They/are from American.对划线部分提问
They are from Japan.(对划线部分提问)
They are from England.(对划线部分提问)划线部分England
They are from America.(对划线部分提问)划线部分是America
They are (books)对划线部分提问
They are black?对划线部分提问.
They are workers.(对划线部分workers提问)
They are talking about my birthday.对划线部分提问
对划线部分提问 they are in Grade 7
they are reading story books(对划线部分提问)
They are playing chess对划线部分提问
They are studying Chinese in China.对划线部分提问?