Answer :

The correct word to fill in the blank in the sentence '9- _______ have you been sick? Since yesterday.' is 'How long'.

Here's why:

  1. Understanding the Context: The question 'How long have you been sick?' is asking about the duration of time someone has been experiencing illness.

  2. Choosing the Correct Word:

    • How old: This is used when asking about someone's age. It doesn't fit the context here as we're discussing the duration of an illness.
    • How much: Typically used for uncountable quantities like money or time, but not suitable for asking about the duration of an ongoing action.
    • How long: This directly refers to the duration of time, making it the perfect choice for asking how many hours, days, or even years someone has been in a particular state, like being sick.
    • How many: Used for countable items or quantities. It doesn't apply here since 'being sick' isn't a countable event.

Therefore, the sentence properly forms into, '9- How long have you been sick? Since yesterday.'

This helps clarify how much time has passed since the person started feeling unwell, which is exactly what the sentence aims to do.

Thanks for taking the time to read 9 have you been sick Since yesterday A How old B How much C How long D How many. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada