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Your roommate is staring at the oven with a very hungry look. Select ALL the correct ways they can ask you about the cooking time.
The correct answers are How long does it take to make dinner? and How long does it take to bake the pizza?
In English, we just say "How long" when asking about time duration. Saying "How long time" is a very common mistake! Also, because the subject is "it", we must use "does", not "do".