A: When does she usually _____B:In the morning, she usually runs with her brother.

Why didn’t you go to the dance last night? — If I tired, I would have.

Lewin was interested in taking research beyond books and looking at how it could________real social change

.Most animals and plants are sensitive _______ sudden changes in temperature

Electricity is cut off in the earthquake. Villagers have to make some candles _______ light.[ ]