单项选择题A.Because many young people have moved into comfortable apartments.B.Because many old houses in the bad part of the town are not inhabited.C.Because many older people sell their houses after their children leave.D.Because many people have quitted their old houses to build new ones.
单项选择题A.To catch the birds.B.To look for shade in the heat of the day.C.To catch other animals.D.To look for a kill made by another animal.