(28) What's the plural of "tomato"?
The plural of "tomato" is "tomatoes", with an "e" before the "s".
(31) Do you live in a house?
Yes, I live in a house. ~ No, I don't live in a house; I live in a flat.
(31) What do I say to you at the end of the lesson?
You say "Goodbye" to us at the end of the lesson.
(32) Do you go to bed early?
Yes, I go to bed early. ~ No, I don't go to bed early; I go to bed late.