单项选择题A.He believes the Browns have done a sensible thing.B.He doesn’t think the Browns should move to another place.C.He doesn’t think the Browns’ investment is a wise move.D.He believes it is better for the Browns to invest later.
单项选择题A.Pollution of the environment.B.A new generation of pest killers.C.Over-killing by hunters.D.Destruction of their natural homes.