— __________ we leave the library before 5 o’clock?— No, you needn’t. You can stay here until 5:30.
——You’re so lucky to have a best friend. What does he like? ——
——I’m sorry I broke your bike. ——
——Thank you for your help. ——
——How was your trip? —— I hope I can go there again.
——What can I do for you? ——