1 - What are we doing on Tuesday? We are going to the cinema.
2 - Let's play football on Saturday. l am sorry, l can't. We are visiting our Grandma and Grandpa.
3 - Why don't you join us on the beach on Sunday morning? We are sorry, we can't. We are playing football in the evening. We are free on Sunday.
4 - Stuart, do you think Roy would like to visit a dog show on Thursday? l am afraid he can't. He is taking part in the running competition.
5 - Stuart, let's have a picnic on Monday evening. That's a good idea! Of course, l will.