—We're going for a picnic next Sunday, and I'd like you to join us.—____________！I have to see my grandmother. She has beenill for two weeks.

---Thanks for your help, but can you do me one more favor, please?---____ , sir. What’s it then? 

--I hope he won't get ill during the examinations.--___________ . He has been very well recently.

—Shall we go to the lecture about the risk of brain cancer from mobile phone use?—________？It is closely related to our health.

—Did you enjoy staying with your friend last week, Lily?—Yes. I _______ with him for a long time.