Multiple choice

__________ you open the window, please?

  1. Could

  2. Would

  3. Should

  4. Must

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The correct answer is 'Could' because this is a polite request using the modal verb of ability in a polite form. 'Would' is for willingness/hypothetical situations, 'Should' is for advice, and 'Must' is for obligation.