Fill in the blank with an appropriate option.

Do you ______ your tap water before drinking?

The correct answer is 'Option 2' i.e. 'Filter'.

Key Points

• The sentence is "Do you ______ your tap water before drinking?" Here, the verb needs to describe an action that you could reasonably do to tap water before drinking it.
• The most logical and common action is to "filter" the tap water, which means to pass it through a device that removes impurities.

Therefore, the correct sentence is: Do you filter your tap water before drinking?

Additional Information

• Now, let's explain why the other options are incorrect:
  • "Flush" - This term is usually used to describe the action of cleaning out a system, such as pipes or a toilet, by causing a large amount of water to flow through it. It's not typically used in the context of preparing water for drinking.
  • "Flirt" - This is a social and sometimes romantic behavior that involves speaking and behaving in a way that suggests a playful attraction to someone, typically not involving serious intentions. It's not related to the context of drinking water.
  • "Flicker" - This term usually refers to a light or a flame that shines or burns in an unsteady, changeable way. It's not relevant to the action of preparing water for drinking.