(2013·安徽卷)I to my cousin’s birthday party last night, but I was not available
.At this moment the bell rang _______ the end of class.
The child sat in the dentist’s chair _______.
Properly _______ with numbers, the books can be easily found.
Were you _______ when you saw that wild animal?
_______ the composition, John handed it to the teacher and went out of the room.