Nancy, thank you for asking me to go shopping with you. But I am afraid I can't. I have a lot of work to do from Monday to Friday. I wonder whether it is ok on Saturday or Sunday.

Paul, I am very sorry I can't play basketball with you on Saturday afternoon because I happened to hurt my left leg last week. I have to rest for a few days. I hope to join you next week.

Emma, you are so kind to invite me to your birthday party. I'd love to, but I have to stay with my mother in hospital. She just had an operation. I hope you have a happy birthday party.

Barry, thank you for inviting me to your house for dinner on Friday 18th. But I have to fly to America on business. I am really sorry. I hope to see you after I get back a week later.

Hall, thank you for your invitation. I'd love to your party at half past six, but we'll have a meeting after work, so I may be 20 minutes late. I hope you can understand.

A. Ted is going to America by air and she is coming back on October 25th.

B. Lisa is travelling abroad. She will call you back after she comes back.

C. Mary is busy on weekdays. She wants to know if it is fine for you on weekends.

D. Tara has something else to do with after work, so she will come to the party at about ten to seven.

E. There is something wrong with Tom's leg, so he can't take part in the basketball game. He will get back to the team next week.

F. Toby can't come to the party, because his mother is ill. Jake is ill in hospital, so he can't come to the party.