With the development of the central and western China more and more modem cities have ——in

问题补充：

With the development of the central and western China，more and more modem cities have

——in what was a wasteland ten years ago

A. built-up

B. sprung up

C. grown up

D. risen up

答案：

A. built-up

(答案→)B. sprung up

C. grown up

D. risen up

解析：短语辨析. A．建立 B．涌现出 C．长大 D．升高.句意:随着中国中西部的开发,在一些过去时荒地的地方涌现了越来越多的城市,故选B.