a. A: My brother’s ill and I have to take care of him. b. B: What a shame! We’ve been planning for the trip for weeks. What’s wrong? c. A: I’m afraid I can’t go on the class trip tomorrow. d. B: I’m so sorry to hear that. I wish he’d get well soon. e. A: Thanks.
Student A can't go on a school trip because his/her littte brother/ sister is ill and he/she has to take care of him/ her. Student B expresses disappointment and sympathy.