It is a general rule that children’s games and books seek to teach and ______ at the same time.
----Have you fed the cat? ----No, but______.
----Do you think it will snow tomorrow? ----______?
-----I won’t do it any more. -----_______?
---- Won’t you have another try? ---- ________.
---I’ll be away on a business trip. Would you mind looking after my cat? ---Not at all.______.