Concept:
In voice change (Active to Passive), the object of the active sentence becomes the subject of the passive sentence.
For interrogative sentences beginning with \textit{Do/Does/Did}, the passive form follows the structure:
\[
\text{Do/Does/Did + subject + verb + object?}
\]
\[
\Rightarrow \text{Is/Are/Was/Were + object + past participle + by + subject?}
\]
Step 1: Identify the subject, verb, and object.
Subject = You
Verb = like
Object = coffee
Step 2: Convert into passive form.
The verb “like” changes to its past participle form “liked”.
Since “coffee” is singular and uncountable, we use “Is”.
Final Answer:
\[
\boxed{\text{Is coffee liked by you?}}
\]