_____ in the mountains for a week, the two students were finally saved by the local police.
____ they did not believe him, what would they do then?
John shut everybody out of the kitchen ____ he could prepare his grand surprise for the party.
一Tell us, Mark ,what is the ____ of the American Civil War? 一 Well, is it because the black slaves wanted freedom?
So much of interest ______that most visitors simply run out of time before seeing it all.
My sister, an inexperienced rider, was found sitting on the bicycle ______to balance it.