单项选择题
According to the passage, what was the percentage of American adults doing regular physical exercises two years ago（）
A．About 70%. B．Nearly 60%. C．Almost 50%. D．More than 12%.
单项选择题 She showed him the photo she （）the day before.
单项选择题 --Have you moved into the new house --Not, yet. The rooms（）now.
单项选择题 They （） going to see my mother this Sunday.
