【单选题】

CapitalCity and Smithsville are two fairly large towns in the midwest nearChicago. Neither is as well known asChicago. (1) the inhabitants of both are equally proud of their (2) hometown.

People inCapitalCity love its quiet narrow (3) streets and its many small neighborhood parks, the boast (4) their hometown has no ugly slums, a low rate (5) crime, and very little heavy traffiC、Because it is the seat of the state legislature,CapitalCity has many stately old buildings— (6) the lawyer’s club in the park by the lake, and the country museum (7) its pioneer farm exhibits.
Smithsville, (8) ,is a bustling, thriving, industrial center. It too has a lake, but (9) that ofCapitalCity, its lake is the center of the city’s industrial development. (10) trees and park benches, Smithsville’s lake is surrounded by factories and smoking chimneys. Smithsville is also (11) its quieter neighbour in its style of (12) . The tall modern office buildings downtown, the new shopping center in the suburbs, and the wide crowded streets seem (13) to Smithsville’s residents than the old-fashioned neighbourhoods (14) .
When people from the more rural city (15) from a visit to Smithsville, they always say, "I’m glad to be home again. That lake makes me (16) . It’s a fine place to visit, (17) I wouldn’t want to live (18) ." (19) a visit toCapitalCity, citizens of Smithsville say (20) the same.
A．tree-lined
B．trees-lining
C．trees-lines
D．tree-lining