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Don’t leave the water ____while you brush your teeth. 

A. run   B. running    C. being run   D. to run

Don’t leave the water ____ while you brush your teeth.

A. run           B. running            C. being run     D. to run

Don’t leave the water ____ while you brush your teeth.

A. run           B. running            C. being run     D. to run

Don’t leave the water ____ while you brush your teeth.

A. run           B. running            C. being run     D. to run

 Don’t leave the water          while you brush your teeth.

A. run       B. running    C. being run     D. to run