"I like the rug, too. Mr. Ullman, why don't you have all the rugs like that?"
Mr. Ullman looked for a moment as if he had sunk his teeth into a lemon. Then he smiled and patted Danny's head. "Those are your quarters," he said, "except for the bath, which opens off the main bedroom. It's not a huge apartment, but of course you'll have the rest of the hotel to spread out in. The lobby fireplace is in good working order, or so Watson tells me, and you must feel free to eat in the dining room if the spirit moves you to do so." He spoke in the tone of a man conferring a great favor.
Question 1: What’s the meaning of ‘Mr. Ullman looked for a moment as if he had sunk his teeth into a lemon?’
Question 2: What’s the meaning of ‘opens off?’ ( there was no bathroom in Danny’s room, but there was one right next to the main bedroom? )
Question 3: What’s the meaning of ‘spread out in?’
Question 4: What’s the meaning of ‘conferring a great favor?’