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Some people against toll booths argue that roads, once , should be free. A. buil

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Some people against toll booths argue that roads, once , should be free. A. buil

Some people against toll booths (收费站) argue that roads, once ___________, should be free.

　 A. building　 B. built　 C. having built　 D. being built

 

试题答案

B

标签：argueboothsroadsthatpeople

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