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You are at the pet store admiring a very lazy iguana. Select ALL the grammatically correct questions you could ask the owner.
The correct answers are How long has he lived in that tank? and How long has he been asleep?
When asking "How long...?" about a third-person singular subject (he, she, or it), we must use the auxiliary verb has, followed by the past participle of the main verb ("lived" or "been"). "How long have he..." uses the wrong auxiliary verb, and "How long has he sleep?" forgets the past participle.