While ________ your teeth, leaving the ________ running may waste several ________ of water.
(tap, litres, brushing, washing, drops)

Explanation

To fill in the blanks in the statement, we can follow these steps:

1. Identify the context of the sentence: The sentence discusses an activity related to dental hygiene and water usage.

2. Look at the first blank: The activity being performed is likely related to teeth cleaning. The word "brushing" fits perfectly here. So, we fill the first blank with "brushing".

3. Move to the second blank: The action that is being left running is typically associated with cleaning or washing. The word "tap" is appropriate here, as it refers to the water source. Thus, we fill the second blank with "tap".

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