19. The growing demand for housing, traffic congestion, and longer commuting trips has all but eliminated the cost advantage of owning a house in many rural communities.
(A) The growing demand for housing, traffic congestion, and longer commuting trips has (B) Traffic congestion, the growing demand for housing, and longer commuting trips has (C) Longer commuting trips, traffic congestion, and the growing demand for housing has (D) Traffic congestion, longer commuting trips, and the growing demand for housing have (E) The growing demand for housing, as well as traffic congestion and longer commuting trips, have
key是D,可是为什么不能选E。 |