They built a house yesterday. They will build a house tomorrow. Написать отрицательное и вопросительное должно получится 4 предложения
Did they build a house yesterday? They did'n build a house yesterday. Will they build a house tomorrow? They will not build a house tomorrow.
1) They didn't build a house yesterday. Did they build a house yesterday? 2) They will not (или won't) build a house tomorrow. Will they build a house tomorrow?