---Could you please come to the museum with me this afternoon?---Sorry, I ______ . I have to take a piano lesson at 2 pm.

-How is your new babysitter? --We _________ ask for a better one. All our kids love her so much.

 — Mum, would you please buy me an ipad?— If you can help do the dishes the whole vacation, you ______ have one as a reward.

–Mom, must I stay there the whole day?--No, you______. You ____ come back after lunch, if you like.

—Must I return the book tomorrow?—No, you ________.You can keep it for three days.