What worried the child most was ______ to visit his mother in the hospital.A. his not allowing B. his not being allowedC his being not allowed D. having not being allowed
He ____ the explosion, but no one else did. How lucky he was!
____ 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.