Поставте предложение в вопрсительную и отрицательную формы: The lesson is over. The teachet speaks English to the students . She knows the answer to this question. He can speall all these words .

The lesson isn't over. Is the lesson over? The teacher doesn't speak English to the students. Does the teacher speak English to the students? Who speak English to the students? She doesn't know the answer to this question. Does she know the answer to this question? He can't spell all these words. Can he spell all these words?