Have you been to the Great Wall?－Perhaps not in my memory. _______ , it might have been during my early childhood.

__________ we leave the library before 5 o’clock?— No, you needn’t. You can stay here until 5:30.

Jim is very_____ because he doesn’t like exercise.

They usually get up _____ 8:00 _____ Sunday. [ ]

How many students are there on the playground? —_________.