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153. If there has been burglary in your house, you should put_____round it before the police arrive to investigate the case.

153. If there has been burglary in your house, you should put_____round it before the police arrive to investigate the case.

A. guests                  B. ladders                C. guards                 D. Poison

If there has been burglary in your house, you should put　　　 round it before the police arrive to investigate the case.

　 A. guests　　　 B. ladders　　　 C. guards　　　 D. poison