If we________a table earlier,we wouldn’t be standing here in a queue.(2013·北京,34)
.He walked down the hills, _______ softly to himself.
.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?